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Description
4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance For Drill Motor 14.8V 16.8V Lipo Cell Module4S 40A Li ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance For Drill Motor 14. 8V 16. 8V Lipo Cell Module Now this 4S 40A balance version has upgrade to new ! 1, increased anti interference function, 2, reduce the large current heat by 30%, 3, starting power increased from 135W to 220W (4S40A) Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill sprayer LED lights low
4S 40A Li-ion Lithium Battery 18650 Charger PCB BMS Protection Board with Balance For Drill Motor 14.8V 16.8V Lipo Cell Module
Now this 4S 40A balance version has upgrade to new !
1, increased anti-interference function,
2, reduce the large current heat by 30%,
3, starting power increased from 135W to 220W (4S40A)
Integrated 10 low load resistance MOS tube, continuous discharge 40A, 100mA balanced current, for electric drill/sprayer/ LED lights/low power inverter.
4S 16.8V 40A lithium battery protection board (comes with recovery function-AUTO Recovery)
Charging voltage: 16.8V - 18.1V
Continuous charge current (upper limit): 20A
Board Size: 46*60*3.4mm
Continuous discharge current (upper limit): 40A (if the cooling environment is not good, please reduce the load current use)
Scope: Nominal voltage of 3.6V, 3.7V lithium battery (including 18650,26650, polymer lithium battery)
Note:this item is Balanced version .If you need other Version,please contact us.The 2 version price is different
Balanced version: suitable for starting current below 80A, power 135W below the drill.(with balance)
Note 1: The successful start of the electric drill requires four 15C-20C power batteries, or eight 10C-15C power batteries (ordinary 18650 can not start drill! ! !).
Note 2: Connect 0V, 4.2V, 8.4V, 12.6V, and 16.8V in strict accordance with the diagram. Do not intentionally short circuit.
Note 3: When the battery is charged, “430” resistance heating is a normal phenomenon, indicating that the equalizing circuit is working; if the “430” resistance is also heating in the state of not charging, please check whether the wrong line is connected.
Note 4: 4 groups of batteries in series, please ensure that the voltage of each group of batteries, if not the same, please fill each battery separately and then use in series. The The Discharge test, the voltage drop faster battery that group is poor battery.
Package:
1* 4S 4A Balance Version Protection Board
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
It Works!!!!!
Size: Powder Poli Ox - Pack of 6
We have only completed the first two steps it Poly Glo set we purchased and has it ever made a difference in the look of our hauler/trailer! The dull oxidize black color is somewhat shiny. Cant wait to put the final two steps on it! A little elbow grease and work did wonders! We will share a photo once the procedure is complete!
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Reviewed in the United States on May 19, 2026
★★★★★ 4
Could be good
Size: Powder Poli Ox - Pack of 6
I cleaned my RV very thorough from top to bottom before even starting the process with the Poli Glow system. Here's what I learned despite videos and lots of reading reviews.
1. Must be very clean and clear of anything you dont want to stick and show on your final outcome.
2. It takes more coats than you think it would (after 3 coats) it was still really streaky and I was starting to regret using Poli Glow. I ended around 7-8 coats and my rig had no major oxidation at all.
3. As one reviewer said, use a clean microfiber cloth v the applicator that comes with it, I found much better results with no lines.
4. Dont go to heavy on the coating, the instructions say this, but I went super light and it can be very easy to get lines with heavier application.
5. Dont look at your work after 3 coats, you will feel deflated, just keep going for at least 6 coats and then look at your work.
6. Only do small areas and look out for drips and lines, you need to get them out right away.
7. I did not use the Poli Ox, I was able to get any oxidation out with just the Poli Prep
8. Going up and down a ladder for hours sucks!
9. I hope it will come off in the next couple of years when I plan to replace the decals. Honestly, thats my biggest fear is how hard it will be to remove when the time comes.
10. After a scary start, I will say it did turn out pretty nice, was it easy, nope, would I do it again? Not sure, I need some time for my back to heal up!
If you do choose Poli Glow know there are other options that maybe a better way to go such as wet sanding etc. Poli Glow is pretty good, but it can be pretty bad also if the surface is not cleaned and the Poli Glow applied correctly.
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Reviewed in the United States on August 17, 2023
★★★★★ 5
Poli glow works!
Size: Powder Poli Ox - Pack of 6, Size: Powder Poli Ox - Pack of 6
Works amazing! After many attempts to buff I purchased Poli glow and done in less than half the time and beautiful result.
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Reviewed in the United States on April 19, 2026
★★★★★ 5
Wonderful product
Size: Powder Poli Ox - Pack of 6
This product has exceeded our expectations.
Thank you
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Reviewed in the United States on May 20, 2026
★★★★★ 3
Good but DO NOT USE APPLICATOR MITT
Size: Powder Poli Ox - Pack of 6, Size: Powder Poli Ox - Pack of 6
The poli-ox worked well, just know that it will require several applications to remove old buildup and oxidation. once you are done, the paint will still look oxidized, but once you put the sealer on, the color will be deep and shiny.
The sealer itself is supposed to be enough for a much bigger RV than we used it for. (17') We used 3/4 of a bottle for 1 side, due to the fact that we would remove and start over because it left ridges like a brush in paint. On the second side of the RV, we scrapped using the Mitt, and low and behold, using a microfiber towel to apply solved all of the issues. No more ridges and the remaining 1/4 of the bottle was enough to apply 5 coats. The mitt also wastes a LOT of product. So be warned use a Microfiber towel (that has been previously washed) and it will save you a LOT of time, money and angst.
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Reviewed in the United States on March 12, 2023
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