how would i wire these 3 batterys up to give me 21volts
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how would i wire these 3 batterys up to give me 21volts
Wire them in series.
With Batteries:
Series ups the voltage
Parallel ups the capacity
pack a posotive to robot
pack a negative to pack b posotive
pack b negative to pack c posotive
pack c negative to robot.
thats great advice .....perfect for an idiot newbie lol
i have had sucess in wiring up three batterys, i now have 23 volts, but i think i may have a problem now with charging it, do i need a 24vovt charger now
Either that or use connectors to attach them together then take them all apart to charge.
No, you charge the 3 packs individually. You can get chargers that will charge the lot in one go however because you have more wire between some of the cells in the batteries you have a greater resistance. This can create an imbalance in the pack when charging. Not as much of an issue with Nimh but I would always recommend charging the 3 packs separately