DC 12680 6800mAh DC 12V Super Lithium Polymer Battery Pack

I bought these in addition to range signal booster kit sold by this company. You always need a spare batteries when fly. These batteries are great, I've used them for over a month now with the kit with no problems.

I use this regularly for powering my drone controls (has issues with the power on/off switch, but works every time if I double click the switch). It's small, light weight and easy to charge (I wish it had a way to see the remaining charge time).

Unfortunately, I bought two of these battery packs and it turns out that they are both duds. First one I thought I was just unlucky, second one I started to suspect that I got scammed.Contacted seller for return. First they told me that I wasn’t using the battery right and that the power switch needs to be turned to the ON position. Then they told me that a 1A application is too much for this battery. Closed my claim, no offer for return or replacement.Here are the facts:Battery will not charge with the included charger, even after charging for more than 48 hours, the battery will not work for more than 5 minutes.I tried a second charger from my co-worker just to rule out a bad charger, same results: won’t run more than 5 minutes.My application is for a 3W single board computer (think Raspberry Pi) which should be plenty for this battery to supply 3W / 12V = 250 mA of current.In my frustration of being unable to return for a working replacement, I tore the pack open to see what is wrong with it. You can see my findings in the attached photo.Inside are 3 x 3.7V 1800mAh Samsung battery packs wired in series to give ~12V. What is misleading about the label is that it clearly indicates that the battery pack is rated for 6800 mAh which is impossible. When batteries are wired in series, only their voltages DO add to 12V but their capacities do NOT add up to 6800mAh.At best, this pack could supply 1800mAh but this particular one I have opened up for inspection cannot deliver even that much. The 3 cells are mismatched (likely because one is severely damaged) in voltages (A is 4.05V, B is 3.85V, and C is 3.75V).I know that I am not over stressing this battery pack as my co-worker has two identical packs that last for about 1 hour with this particular application. However, his batteries were sourced in Hong Kong from a reputable seller.Not much else I can do at this point other than to post the facts and warn others who might fall into the same trap I did.In summary: this battery pack is 100% pure garbage, backed by false claims, and mine is not even good enough to be used as a doorstop any longer. $80 for two of these junk boxes is an expensive lesson to learn.

Very good products, excellent after sales support

Beware. This battery will only power 1 booster. It has 2 wires coming out of it 1 female and 1 male and only 1 extention adapter for the male line. The female side is for charging and no adapter available to use it as a input. This is getting returned. The DC12480 appears to be the correct battery to run 2 boosters and its not available on amazon.

Great idea but won't power on when connected to 2 LNA's. Have tried it with 4 different amps. Must be plugged in 1 at a time then works. Not optimal with this oddity.