kzfaq.info/get/bejne/fcVihdWVkrCXaaM.html

Do you mean Amps or Ah ❓ So you will go to a 3.5Ah pack The bms will probably limit the power draw to around 10 Amps per Cell. Your not presumably adding more cells just their capacity. So your drilling time may last longer but no increase in power. If you add another layer of cells in parallel then you will get less battery 'Sag' and more oomph.. kzfaq.info/get/bejne/p8-DZbFpva2yYJ8.html

@@johnrhodes3350 I wanted to say 3.500 mAh. If I add one more layer of batteries, it's gonna have capacity 7mAh. Is this right? Thank you

The original oem cell capacity is 2000mAh your new one's are 3500mAh The 'parkside' cells behave very similarly to the Samsung 20S 18650 2000mAh 30A Battery - INR18650-20S kzfaq.info/get/bejne/qtSnobKFkrGXdKc.html This cell is the top in terms of current discharge/drain in the 18650 form factor size. It is for Mega-High Discharge/Drain devices only. This cell is the hardest punching cell in the 18650 size class by far all the way until it reaches about 33% drained. With a True 30 amp Continuous Discharge Rating with no temperature cut needed, you can see why that's the case. It also packs a modest 2,000 mAh in capacity as well. However, this cell is only the clear winner of the King of Drain in the 18650 form factor size, when it's used above the 25 amp mark, due to the shortage of capacity needed to sustain it's voltage throughout it's drain. It is an awesome cell when used in device(s) that require or demand more than 25 amps of Continuous Discharge/Drain, this is where this cell's potential is truly unlocked. This power cell does have a moderate range of capacity as well, but not its best strong suit.

@@johnrhodes3350 I bought Samsung INR18650-35E 3450mAh - 8A. Is it ok for replacing the parksides's stock batteries? Thank you