What is the best 18650 battery for an electric screwdriver

Lanzhd INR18650 (link)

According to the manufacturer, his products are designed for power tools and appliances. Rated capacity of these batteries 3400 mAh, rated voltage 3.7 V. If we believe the measurements made by users, lots of Lanzhd INR18650 have a very noticeable percentage of defects. Quite a number of products exhibit increased resistance, which does not allow them to be used as a block battery.

LG 18650 HE2 batteries: 3.7V 20A. Screwdriver upgrade.

In short: the batteries were bought only because of its low price. 3.1 dollars per 1 piece. (1.89 x 3 pcs. = 5,67. Plus shipping 4.63 = 10.30 Minus a coupon AliExpress = 9.30 Total, for one piece. 3.1).

But! By the time they arrived, while the screwdriver was being assembled and tested, the store had already closed. The seller said he had opened a new store, but the there are already the standard. detailed story is under the source.

1 pc US 6.83 with shipping 2 pcs US 11.65 with shipping- 5.8 apiece. 4 pieces US 20.46 with shipping. 5.1 each.

Battery specifications: Capacity. 2500 mAh. Voltage rating is 3.6V. Charge current 1.25 A to 4.2 V, fast charge 4 A. Standard discharge current. 500mA, fast discharge. 10 to 20A. The maximum discharge current is 20A. No built-in protection.

It so happened that last year I used an old screwdriver SKILL, laying in a closet for about 15 years. I powered it from a transformer power supply and put up with the power cord dragging around the room. But after reading the reviews comrades ksiman MNKE IMR-26650 3500mAh LiMn2O4 or resuscitation drill. screwdriver and kirich INR18650. 25R test and a short story of one order decided that enough to be on the leash and time to work a complete tool.

The MNKE batteries were given up because of the enormous price, and the Samsung batteries on Aliexpress, too, were priced high, starting at 12 for 2 pieces. (and not for 4, like kirich :).

Periodically looking through vendor offerings, I saw LG 18650 HE2. And even with paid shipping the price was quite affordable, and even the coupon for 1 came in handy.

The batteries came in a paper bag, each in a cardboard box. The measured voltage is 3.7V on each.

The date of manufacture was determined based on the article Waldemarik Battle of the Heavyweights or choose high-current lithium batteries My batteries have the following designation: N290J174AP The first letter is the year of manufacture: J. 2010, K. 2011, L. 2012, M. 2013, N. 2014, O. 2015, etc.д The next three digits are the day of manufacture: 290. Date of manufacture. October 18, 2014. The seller’s photo shows a production date of January 12, 2015. At first I wanted to complain, but decided that the difference of 3 months was a drop in the ocean and calmed down.

It’s a bit confusing with the datasheets, because different datasheets give different information about the lower limit of discharge. in one it is the standard 2.5V, in the other as much as 2V.

In any case checked the batteries with a borrowed iMax, which only discharges up to 3 V, so the discharge current of 0.5 A lasted 255 min. and gave 2130 mA (after charging up to 4.2 V).

High current 18650 with GB and another conversion of the screwdriver to lithium

Hi all. The review not so much batteries (on which, by the way, left, thanks to Mysku), how many variants of rework of a screwdriver. Batteries are good, corresponds to the capacity, battery replacement was a success

LG HE4 high-current batteries from Gearbest: https://www.gearbest.com/batteries/pp_254172.html Batteries are good, checked their capacity with my friend using Opus charger, the capacity is correct. No other special tests were done.

Imax B3 three-channel charger: aliexpress.com/item/New-EU-Plug-iMaxRC-iMax-B3-Pro-Compact-2S-3S-Lipo-Balance-Battery-Charger-For-RC/32762617267.html This is my second attempt to buy such a charger, first time order did not come, money was returned. The charger ordered from the seller at the link above arrived, works, it comes with a 40cm long power cord, the cord in the picture is clearly different. No loop to connect the charger anywhere in the package.

Best Screwdriver Brand? (14 BRANDS) Milwaukee, Dewalt, Makita, Ryobi, Bosch, Pink Power, Metabo

Holder for three 18650 batteries: aliexpress.com/item/Hot-Sale-Practical-DIY-Black-Storage-Box-Holder-Case-For-3x-3-7V-18650-Rechargeable-Batteries/32666851252.html In the seller’s picture this version of holder for three 18650 had pins for soldering into the printed circuit board, but I received a totally different version, not only not for printing, but also with soldered in kolhozno jumpers, connecting all three batteries in parallel. Got a partial refund. I unsoldered the jumpers and used them, though not in the way originally planned.

Background. My Interskol DA-12ER-01 screwdriver is almost 10 years old. Most of all he “got” during the repair in the apartment 6 years ago, but usually most of the year he had a rest, a little work in the summer at the cottage, and performed small tasks: crafts, assembling furniture, etc.д. Problems with the batteries began a couple of years ago, one battery stopped holding a charge, the second worked fine. I took apart the defective battery, found the two most worn out cells, and tried to replace them with similar ones, bought on eBay. But when I put new elements, I found out that the other elements, which I thought were still alive, are also candidates for the trash garbage can: under load, they have reversed polarity. There was no sense to change all elements, so I converted this battery into some kind of adapter for connection of a screwdriver to car cigarette lighter.

But I was not going to plug it into a car onboard, but into an old lead 12v 7 Ah battery from a halogen camcorder light, whose socket was similar to that of a car cigarette lighter. Light for video cameras I have long had a LED powered by lithium batteries, but the battery at 12v remained, so it came in handy for a screwdriver, though used only a couple of times. Here is this super-mega adapter:

But because the 12v 7 Ah battery was more than 8 years old, it could not hold a charge any longer and I was forced to sell it for scrap. So, most likely, the “adapter” for the cigarette lighter will disassemble, to connect the “screwdriver” to the car makes no sense.

This summer the second battery of the screwdriver finally gave up, it began to run out so quickly that it was impossible to do serious work with it. In spring it was working at least somehow, but by fall a dozen medium-sized self-tapping screws on one charge was its limit.

But nevertheless, I think that the cordless battery life of the cordless screwdriver is very good, it lasted 8 and 10 years, while my friends died in the 3rd and 5th year, and in about the same unprofessional mode of use.

Buying even one new nickel-cadmium battery is an utter savagery, it is 50-60% of the price of such a screwdriver (yes, they still sell them) with two such batteries in the set. I also rejected the option of buying an already assembled battery of nickel-cadmium batteries from ali or ebay, ready to be installed in the case of a dead battery: it is cheaper, but the quality of these batteries is questionable, so two cells I bought on ebay had a decent capacity variation, and how long it all will work, nobody knows. Besides, I decided to give up nickel-cadmium completely and irrevocably: my impressions are very positive from switching my screwdriver battery to lithium six months ago.

Actually, of course, my screwdriver is already old and shabby, so I thought about buying a new, modern one with a lithium battery to replace it. But the mechanical part is still in good order, and the mechanics of modern inexpensive screwdrivers is extremely weak: those that I have had the opportunity to hold in my hands, had just an obscene backlash in the chuck bearing after an obscenely short period of time. And buying a professional expensive screwdriver makes no sense, most of the year it will lie in the closet.

But the most important thing is that I was itching to remake my screwdriver for lithium by myself. I had my doubts: the price of batteries, protection and charge-leveling circuit came close to a simple lithium-powered electric screwdriver from Leroy Merlin with a one-year warranty. But the desire to solder and tinker with it overcame the doubts that they would send the wrong batteries, that something would go wrong, etc.п.

First, I wanted to do everything by the classical scheme, i.e. to take three 18650 high-current batteries, add to them a 3S protection and equalization board, respectively remake the charger for lithium. But then I decided to make it simpler and, in my opinion, much more convenient.

By experience with batteries for cameras VBG6, F550, F770 etc., where two 18650 batteries are connected in series, I have long ago concluded that the batteries die mainly because the charge equalization circuit can not cope with its task. As a result, one battery is constantly overcharged, the second undercharged, and very soon the battery goes in the trash. Even replacing dead cells with the original Sanyo, which has much more stable parameters, the effect was not as long as I would like, a couple of years, and that’s all.

And with a screwdriver the battery will have three cells, current loads are much higher, the unbalanced capacity of the cells will show up faster, so I doubt very much that the charge equalization/balancing board will help the batteries not to die prematurely. That’s why I decided not to charge all the batteries from one source at once, in favor of charging each battery separately. Three-channel charger I decided to take a ready-made, well-known Imax B3, in my opinion it is in any case more effective than the balancer card, besides it is very compact and lightweight.

I decided to refuse from the overcharge / overcharging protection board, the screwdriver has a battery voltage indicator, it is quite possible to orient with it, how low the battery is. Well, if any battery out of the three “fails” and suffers along with all the others (protection against voltage drop would have turned off the whole battery long ago) you know, it is its fate, it cannot be helped, but the battery will not turn off before time.

having estimated that after installing the battery in the battery three cells 18650 it still has enough space left, I decided to cram the battery Imax B3 itself in the same place. In this case, to charge the batteries it will be enough just to connect the 220v cord to the screwdriver. And it’s really comfortable: no external charging, the screwdriver comes only with a 220v cord, and the cord is universal, even from the receiver / printer / music box.the center is suitable.

Said and done. The first batteries with GB came to me, first I tried to test them myself, putting them one by one in my existing vverbank, giving a load of 1A, and calculating the capacity based on the run time to shut down. Despite the fact that I was recalculating the capacity from 5v to 3.7v, I got very low results, about 1.5 Ah, so I asked my friend to test these batteries with a full Opus test charger, I do not remember the model, and he calmed me down, the capacity of all batteries was normal, but not 2.5 Ah, but 2.3 Ah, which suited me fine.

Originally I wanted to connect the batteries by means of spot welding, I even bought a nickel strip for that, but I never finished the unit for spot welding. So I decided to use the holders of three 18650 cells, ordered for a completely different project. It did not fit the seller’s description, but after some modification it fit perfectly, especially as the batteries are very tightly seated in it, the contacts are thick and stiff enough. Even with a very dynamic shaking the batteries did not jump out of the holder.

The very last Imax B3 charger came to me. Tested it. it worked, and then I started the process of converting the screwdriver to lithium.

The original battery was gutted, I soldered the wires to the contact group, screwed the battery compartment to the base of the case, and soldered the wires to it. I put a 10A fuse, but I put it on the terminals: the car holder didn’t fit into the case. By the way, one of the nickel-cadmium cells supports the contact group, it is just the right length. I ran the screwdriver through the lithium batteries and was surprised at how much torque it got.

Next I put the Imax B3 charger in the battery cover, put the charging connector on the side of the cover (not the native one). I removed the LED pads from the indicator lights and put them through the holes in the case, so now you can see the whole charging process by the three glowing “eyes. Naturally red light means charging, green light means it’s charged.

Then I connected the charger to the batteries, drove it around a bit, and then put it on the charger. And that’s where the problem came out, which I’ve already read about, and which couldn’t be avoided in principle. Microcircuits. charge controllers TP4056 became wildly heated. Well, they should not heat up, the charging current (judging by the current follower resistor resistance of 1.8k) is about 600 mA, the input is about 6v. And I had almost fully charged batteries, and their voltage during the charge was about 4.15v, and the power dissipated by each chip was about 1.1w. That’s enough to fry up three microcircuits on a small circuit board, and even in a confined space. If the batteries had to be charged from zero, there would be even more power dissipating on the microcircuits.

So I changed the charging resistors from 1.8k to 4.7k and reduced the charging current to about 270mA. Even so, the microcircuits burned my fingers. Of course, nothing terrible happened in this mode, the batteries charged normally, almost at the same time the green LEDs turned on. But in hot weather the charger might overheat, the housing was not covered during the test. And the charging current is kind of low.

So I put a small heatsink on the chips (via Nomakon), again changing the current charge resistors to 2.2k. the charging current is about 500 mA. After running the charger in this mode, I found no serious heating of the heatsink, and I’m sure that on a hot day in a closed battery case the temperature will be normal.

The only thing that bothers me is the maximum voltage of the batteries at the end of the charge: 4.20 4.23 4.21v. Isn’t that a bit much?? But it’s impossible to influence this voltage, except to change the microcircuits.

In general, assembled a new battery finally. Instead of the former 1.5 Ah it has a capacity of 2.3 Ah without memory effect. Minus is that you can’t leave it out in extreme cold, but no one is forcing you to do that.

Well, and how the new battery powered screwdriver works, I like.

Now a little about the original screwdriver charger:

The charger worked fine for 10 years, despite the fact that it was heating up like an iron. Surprisingly, after ten years the pungent smell of plastic and burnt gethinax has not disappeared from it. I have no place to use it now, so I decided to disassemble it:

All “Interskol” products I have encountered, caused great doubt that they were made in our country, as “Interskol” itself claims. Everything is too “Chinese”, both printing and assembling, and only imported parts. Also with the battery charger, there’s nothing of their own. I am familiar with domestic production, both consumer goods and military equipment, and I think that in this case everything was done “not according to our. I think Interskol only put their labels on it.

But since the charger was being scrapped, I decided to borrow the contact group that connected to the battery from it. The board was disassembled and sawed off, leaving a piece with contacts:

The question of why? Yes to be able to connect to the battery instead of a screwdriver external load. My go-to power source used to be a 12v 7ah battery, but it died and it made sense to use a screwdriver battery instead. So I made a special adaptor out of a piece of charger and other handy materials.

The purpose of this adapter with a cigarette lighter plug on the wiring harness is to power the car’s on-board power supply when removing the starter battery to recharge or replace it with another battery (I have two). I don’t want to restore the settings of the radio and other devices after disconnecting the onboard power system. I plugged the plug into the cigarette lighter. and do your job, and you can turn on and lights and emergency lights, and all the settings will be saved. Only a lamp under the hood is not Start the engine with an external battery is not recommended, the battery current limiter is absent, but in case of what will burn out the fuse at 5A in the plug.

The plan is to make the adapter universal to connect different devices, but I have not found a suitable connector, later I will remake.

In general, I am satisfied with the screwdriver redesign. Cost me about 1100, plus three evenings after work for alterations. In my opinion, it is convenient, but of course not without flaws. the battery discharge must be monitored to avoid ruining the batteries, and it is better not to give the converted screwdriver in the wrong hands. But for me I am not sure yet how the screwdriver would behave when the battery is completely discharged, how much its power would drop, and what the indicator would say about it. So it will be necessary to monitor the screwdriver while working with it.

Types of lithium ion batteries

18650 batteries have different characteristics.

The high-power models are equipped with electrodes of appropriate size and weight to prevent overheating. Also charge current increase by adding all kinds of substances to the electrolyte.

Marked according to the cathode material:

• ICR uses cobalt oxide for low power devices. These cells have a high capacity.
• INR nickel manganese and cobalt oxides. Ensure high power and energy efficiency. Used to power motors in tools and vehicles.
• IMR manganese oxide. Cells have high power and stability.
• NCR oxides of nickel, cobalt and aluminum. Provide increased power and long life. Low current output.
• IFR iron phosphate provide over-discharge resistance. Used to replace sulfuric acid batteries in traction motors.

Aging, storage, and operating temperature range

Li-ion cells are sensitive to storage conditions. Do not store in direct sunlight or near heaters. Even worse they tolerate temperature below 0 degrees (with a single drop in temperature the capacity is reduced by 50%). Even if you follow the rules and store cells at 515°C, manufacturers are laying ten percent reduction in capacity per year from the stated.

It is recommended that batteries should be stored partially charged (30 50% of nominal capacity) and periodically recharged. Best to use them immediately.

With proper operation, avoiding overloads or deep discharges, the cells can withstand up to a thousand recharges.

Lithium cobalt

These batteries have the highest capacity of charge. Their disadvantages are as follows: they cannot be used in equipment with a heavy load, they cannot be recharged quickly, the cells may overheat and even catch fire.

Lithium manganese cells

Their advantage is stable operation. They are also safer than lithium cobalt. Have a long life, even with low resistance (high current recoil).

Disadvantage Afraid of overheating. Their capacity is lower than cobalt nickel by 30% for the same size.

Lithium iron-phosphate batteries

Second name ferrophosphate. Their main advantage is stability. The cells are non-toxic. Not resistant to high temperatures, short circuits.

Tips for choosing a 18650 battery

There is a lot of information on the web about what 18650 batteries are good for a screwdriver. In some places it is contradictory or untrue. To buy the right lithium battery for your tool, you need to pay attention to important characteristics.

Current limit

Lithium-ion batteries are divided into two types:

• High-current (capable of delivering 10A current without harming the battery).
• Low current (deliver up to 10 amps or less). Battery failure and voltage drop may occur if they deliver more than 10 amps.

Idle current draws the smallest amount of current, up to 2 A. At operations with fasteners or drill bits, household screwdrivers reach 10-20 A, professional units. 40-50 A. Accordingly, in the short-term mode, household tools can withstand up to 30-40 amps, professional tools. up to 60-80 amps of current.

To avoid severe voltage sagging and power loss under load, it is recommended to reduce the internal resistance of the battery.

Having a built-in controller

The 18650 battery device may or may not include a controller that monitors the amount of charge, temperature, and load current.

Such a controller is located in front of the minus terminal on top of the case.

Controller

Installation of interrupters is optional when batteries are used, for example, to create a 12 volt current and there is a common charge controller.

List of known microchips used by controllers:

• DW01. It consists of a 6-legged board and field-effect transistors connected by a special assembly in one housing. The transistors create a measuring shunt. Thanks to the parasitic LEDs it is possible to charge the battery even when the mechanism that protects against deep discharge is triggered.
• LV5114OT. triggers at 2.5 to 4V;
• S-8241 Series. will trip at 2.3 to 4.3 volts;
• R5421N.will trip on overcharge.

Presence or absence of battery protection

Li-Ion batteries exist with and without protection. A special board that performs certain functions is responsible for protection:

• short-circuit prevention;
• Overdischarge protection at 3V and overcharge protection at 4V.

Battery protection

Only batteries without protection may be used, i.e.к. The protection circuit board triggers at 6 to 10 amps, and the tool operation involves a current of more than 10 amps with a load. Accordingly, operation of the screwdriver is not possible when using a battery with protection.

Samsung INR18650-30Q 3000mAh 15A high-current batteries and universal BMS in electric screwdriver conversion.

These are really very clever elements which can be easily charged individually with the help of USB ports. And the power is fed from both special adapters, and from computers. In some cases such devices can work as power banks.

EASTFIRE

Small 1500 mAh battery that can be easily charged via its own USB connector. Takes about 7 hours to get a full charge. Battery functions steadily at temperatures from.10 to 40 degrees Celsius.

Liitokala USB-34B

Good quality battery of 3400 mAh capacity for use in any electronic devices. Requires no special charger and can be easily connected to a power source with a standard USB cable.

Liter energy battery USB 5000ML

Battery capacity of 3500 mAh that can be fully charged through a standard USB cable in about 5-6 hours. The exact figure depends on the characteristics of the power adapter. Model Weighs 47g

Liter energy battery 5000M

Rather expensive 3500 mAh variant, equipped with LED indicator and suitable for powering almost any electronic devices. Produces a good current, and maintains a stable voltage across the pins.

Rechargeable 1400 mAh battery

A set of 1400 mAh rechargeable batteries. Lithium-ion cells are equipped with a small indicator with which you can easily monitor the charging status of the battery.

Lanzhd

An expensive 2600 mAh lithium-ion battery that makes up for its price with longevity and stability. Supplies uninterrupted current to the contacts of any electrical appliance, and guarantees safety to others.

Tips for choosing a 18650 battery

There is quite a bit of information online about what kind of 18650 batteries are good for a screwdriver. In some places it is contradictory or untrue. To buy the right lithium battery for your tool, you need to pay attention to important features.

Current limits

Lithium-ion batteries are divided into two types:

• High-current (capable of delivering 10 amps of current without harming the battery).
• Low current tools (up to 10 amps or less). Battery failure and voltage sag may occur when working with currents greater than 10 amps.

Idle mode draws the smallest amount of current, up to 2 A. Household screwdrivers reach 10-20 A when operating with fasteners or a drill, professional units reach 40-50 A. Respectively, household tools can handle up to 30-40 amps in short-term mode, professional tools up to 60-80 amps of current.

To avoid strong voltage sag and power loss under load, it is recommended to reduce the internal resistance of the battery.

Availability of a built-in controller

The 18650 battery design may or may not include a controller that monitors the amount of charge, temperature, and load current.

This controller is located in front of the minus terminal on top of the housing.

Controller

Installing breakers is not necessary when batteries are used to create 12 volt current, for example, and there is a common charge controller.

List of known microcircuits used by controllers:

• DW01. Consists of a 6-legged board and field-effect transistors connected by a special assembly in one housing. Transistors create a measuring shunt. Thanks to the parasitic LEDs it is possible to charge the battery even when the mechanism that protects against deep discharge is activated.
• LV5114OT. trip on 2.5 to 4 volts;
• The S-8241 Series is triggered at 2.3-4.3 volts;
• R5421N. trip on overcharge.

Whether or not the battery is protected

Li-Ion batteries exist with and without protection. A special board that performs certain functions is responsible for protection:

• short circuit prevention;
• Overdischarge protection at 3V and overcharge protection at 4V.

Battery protection

Only batteries without protection can be used, i.e.к. The protection circuit board is triggered at a current strength of 6-10 amps, and the work with the tool provides a current of more than 10 amps at the load. Accordingly, the operation of the screwdriver is not possible when using a battery with protection.

What kind of lithium 18650 batteries are best for an electric screwdriver

To determine the optimal 18650 series battery, the calculation of parameters according to Ohm’s law is used. To determine the parameters you need to know the operating voltage U and the resistance of the device R, which is measured with a test meter switched to ohmmeter mode.

The ratio of U and R allows you to determine the strength of the current in the power circuit, based on the analysis of the value made the selection of the battery, which will operate without overloading. When selecting, capacity and dimensions of the battery, which is placed in the tool body, are additionally taken into account.

Customer Review: “I agree with every review. the best battery store on Aliexpress. Old Screwdriver Bicor 14.The 4V is alive again with these rechargeable batteries. Came from order to receipt in 3 weeks. In one piece. Voltage at all 3.83 volts. It’s not the first time I’ve ordered these rechargeable batteries, everything is fine (there is a review on YouTube). Seller is reliable, there are even ni cd (nickel cadmium) batteries.”

Customer Review: “very fast delivery time for rechargeable batteries, only 30 days. I order batteries from this seller more than once, always quality product, fully consistent with the description. Li-ion batteries weigh an average of 57 grams., which corresponds to the weight of the batteries of the previous batch. Discharged a fully charged battery with 1A current to a minimum voltage of 2.6V. The USB tester showed a 3300 mAh discharge capacity. The charger then charged the battery to a charging capacity of 3560 mAh. Which is much better than what is advertised.”

Customer Review: “This is not the first time I buy these batteries. Rating is high, reviews are positive. They work well, the capacity corresponds to the declared 3000-3400 mAh. I think these are the best batteries for a screwdriver (for Makita just right). Delivery of batteries 30 days, no quicker than that, as it is dangerous cargo and air freight is prohibited. Otherwise, it’s perfect.”

Customer Review: “Solid lithium battery, ran it a few times. holds the capacity. I bought my first LiitoKala battery a year and a half ago and it is still good. I took batteries for my Interskol screwdriver and flashlight. The purchase is satisfied, and once a month the store provides a promo code, which is located on the product card, the price becomes much lower.”

Customer review: “Tested all the rechargeable batteries, everything is fine, resistance is excellent, charges as it should. Some unscrupulous sellers on Ali pretend for a high-current battery 3000 mAh, in reality, half do not work, and up to 1800 mAh, not even hold out. This seller always has great batteries, if you do not know which battery is best to buy, get one from this brand.”

VariCore NCR18650B lead batteries.

Customer Review: “This isn’t the first time I’ve ordered. Good batch this time too, all 40 pieces. 3,68v. AA batteries are great for e-bikes and gyro scooters. They came intact, and the packaging is good. Delivery in 30 days, which is fast for batteries. Later I plan to order AAA batteries.”

LiitoKala LiiDBHG218650 batteries.

Customer Review: “Quality batteries. Corresponds to the declared capacity (2800. 2900 mAh). I took batteries to replace the Hitachi screwdriver. The electric screwdriver works great. How to choose a good battery? Go to the seller’s store and look at the orders. I recommend the seller and the product to everyone.”

Customer Review: “The best lithium ion battery for the price. This is not the first time I’ve ordered from this seller. Batteries are consistently good quality! The capacity is as advertised. I bought these for my Bosch electric screwdriver. Packed in a cardboard box, delivery was fast, fully tracked. Delivery by courier within 10 days from the warehouse in “

Customer Review: “These batteries are powerful. The capacity is consistent. Took them for bikes and flashlights. Can I buy batteries from Aliexpress without fear of? Yes, the main thing is a reliable seller. Don’t take very long, don’t forget these are lithium batteries and they go by train for safety.”

Customer Review: “The best batteries on AlieXpress! I’ve been ordering for the third year now. I am converting my screwdrivers to rechargeable lithium-ion batteries. Customers love it! The average capacity is 2600 mAh, current hold 15 amps ok. You can see the battery test on youtube. I recommend it!!”

Here we look at the top 10 batteries 18650 from Aliexpress. These rechargeable batteries are always useful in everyday life. over, the cost is very low.

They are often used in electric screwdrivers, flashlights, wireless mice and even in some electric scooters. The application of the enormous.