Tinker I

Recharge
Recharging an energy cell requires a single bit for every 3000 units of charge, rounded down, but 1 at a minimum. For example, recharging a from empty requires 3  bits because its capacity is 10000, which when divided by 3000 gives 3 with a remainder. If you don't have enough bits for a full charge, you can choose to partially recharge, which consumes all of your bits and gives 3000 charge for each one.