What's the deal??? Last 3 starter kits have had one battery go died in first week?

[alkiburner]

Anybody else having this problem??
It seems like every time I get a kit one battery works exceptionally well and the other dies.
My last three kits have been this way.
I was originally using automatic batteries but switched to the manuals in hope that they lasted longer.
Yet this last order, I went completely different and ordered a manual 1300 mah monster.
But same thing one battery works for 12hrs. or more and the second just blinks green.
One good and one bad.
Thanks ahead of time for input!
​

 

[Bowtie]

Get a mod.
Whether it be a Battery or a Feeder. Problem solved.

 

[Dicot]

That seems like quite a stream of bad luck. Were these kits all from the same supplier? If so, maybe it's time to find a new one...