I'd like to upgrade the cells in my Bosch's cordless drill battery as they are originally rated at 1.3 Ah but according to my electronic load they are around 1.05 Ah today. (10 year old batteries).
I got frustrated today as I was drilling 4 deep holes in a concrete wall and had to swap the battery out after just two holes!
Today's high end 18650s are around 3400-3500 mAh as battery tech has gotten much better over the last decade so I thought it would be a fun and beneficial project to take the pack appart and upgrade the cells within.
The only issue is, the original ones are Samsung INR18650-13Q and according to the datasheet, they are rated at a max continuous discharge rate of 15A while the ones I'm thinking of replacing them with are Panasonic NCR18650B with a max continuous discharge rate of 6.8 A only.
Not sure why this is the case but will this be an issue? I don't want to run out of power while drilling deep holes in concrete with hammer action so should I look at another cell that at least matches the 15A rating of the original battery?