DC12V Super Polymer Rechargeable 20000mAh Lithium ion Battery Pack 2A (24W),for Aviation Models Portable DVDs, MP3 Players and More,Power Bank with Charger(Blue)

Great battery, when properly cared for! I have found this battery to be a great performer. I don’t use the crappy wall wart. These type of batteries need an intelligent charger. I’m certain that the low reviews on here result from a lack of user knowledge. These are not your fathers batteries and should not be treated as such.

I own two versions of this battery - the 9800mah and the 20000mah. I use them infrequently for field projects at work. When I'm done with the project they are stored with the rest of the equipment in a spare bedroom closet. I went to get the equipment yesterday and found the 20000mah battery bulging. The 9800mah version still looks ok. The battery looks like it wants to explode - I can't say for sure that it would, but that's what it looks like to me. In any event I'm glad to have it out of my house.I contacted the seller and got this response:"The bulging battery proved to be broken and unusable.Maybe you didn't turn off the switch, and the constant leakage will cause the bulge.Another reason is that the temperature and heat cause the battery to bulge。"Both of those scenarios don't apply here. The batteries were switched off and stored inside my (air-conditioned) home. I'd strongly advise against purchasing these.

The connectors that come with this battery made it easy to connect it to a back up camera I purchased and am using on an E-bike that I have. I use the camera as a review mirror. The batter life has been great so far.

I bought this battery last fall for a sonar unit forice fishing. I used it last year with OK results. I came to charge it for this year and the battery is bulging and I need to get rid of it.

Loaf Tested this batter using West Mountain Radio CBA IICUT OFF VOLTAGE 10voltsload of 1.5 amps 4.51Amp hoursLoad of .75 amps 6.39 Amp hoursLoad of .50 amps 6.50 Amp hours

This is the perfect battery to power my fish finder and LED lights on my small fishing boat. Very compact large capacity and provides long run time while taking up very minimal space.

awesome

I have order 6 of these now and same thing every time we use them once and charge them . 2x they will not work at all. We need this size for a electronic the requires this size but I need to find a different supplier.