Rover5 will not power on after charging.

[mbates50]

Anyone else have this issue?
After a full charge the only way I can power up is by plugging in the charger again, like a jump start. It powers up and usually don’t have to do it again till the next charge. I don’t have this issue when I swap out my battery with my wife’s battery.
Less than 8 months old. Rad won’t warranty it due to the Bolton controller I added. I’d buy another one but as usual, they’re outta stock!