MAENT® 12V Li-ion 18650 Lithium ion Rechargeable Battery Pack 3S1P 11.1V 12.6V Battery Pack for GPS i Pod P sp/DVD/mp4 CCTV Camera DVR Backup Tablet PC Project Work Industrial Equipment (2200 Mah)

I have Black n Decker drill machine with dead NiMH batteries. The manufacturer is not providing replacement. I though of doing experimentation with LiOn batteries. With little cutting inside the battery chamber and soldering iron, fresh life to the drill machine has been given. Don't use NiCd charger. Use any 12V, 1A charger. The batteries can hold charge for long time - I have checked for a month. The vendor provide help line through whatsapp - it was prompt and solved the issue.

Great, in value , battery quality and in function but, don't know if it is supposed to come charged as for me it came charged and the battery life is very good , I have not charged it for like 3 weeks and it is still has power left a lot of power

Battery pack was defective, it's output showed only 6v and was not charging too. Since I was running out of time for a project as scheduled, I had to open up the pack. The bms had no problem with it, but one out of three batteries used, formed gas and not working. Technically, this happens when lithium ion battery is miss handled (when somehow it is shorted). Maybe this happened at the time of assembling or packing it. I had to release it's pressure and make it work, which many customers may not have any idea of how it can be done. I am bit worried thinking about company's quality control, you guys didn't even checked before you despatched your product, it's unexpected. Loosing reliability in market is biggest loss I believe

A few caveats - this does NOT have heat resistant tape as described. The BMS is smaller than what is shown in the photo and supports only 3-4A current. I ordered 2600mah and received a pack with 2600mah printed on top, but I opened it up to find only 2000mah batteries inside. To be fair, when I brought this to notice of seller, he was cooperative and promised to investigate and take action and also change the product information on this page to the correct one. Otherwise the product is good quality and even had perfectly matched batteries.

I read the sincere product details including use of good quality BMS, which is most important and hence I bought this product. Incidentally this is my second battery from MAENT and I am extremely satisfied with this battery too! Thank you for making an awesome battery!

They drain fast with or without use.

Purchased it to replace the battery of my router UPS. Works perfectly!

Nice