220 100 converter for khr 2hv

[Kuba]

Which converter is the best for khr 2hv batteries? Where to buy and what type?
US plugs fit to JPN sockets, but
- US is running 120V 60Hz
- Western JPN has 100V 60Hz
- Eastern JPN has 100V 50Hz mains power
Is it possible to change 10.8V khr 2hv battery into PP3 9V standard battery?

[limor]

option-1: use the one supplied in the box and buy a 220V/110V adapter
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option-2: get a NiMh charger

option-3: get a LiPo battery+charger (+low-voltage-cutoff circuit)


KHR2 is not supposed to work at 9V and standard battery may not give enough current.

[Kuba]

what is khr 2hv voltage range to be sure that nothing wrong will happen?