I'm so late, finally I've become much better at soldering and I now want to change out my battery for my ezflashiii . I found an old (2011) thread that recommends an ml_2020/va1n. Batteries have come a long way. I've found 'Pansonic VL2020/VCN, VL2020 VCN, VL2020 (Vertical Mount) Lithium Battery Rechargeable (Secondary) 3V 20mAh Coin, 20.0mm. The only difference I can see is the standard charge current is different. The ml_2020/v1an is at 3ma and the other battery on Amazon is 1.5ma. Other than that, everything else seems to match. Would this difference matter? I'd really hard to effup this card, I've had for like ever. Thanks!