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I'm currently trying to replace a broken battery for an electric moped, but the old one had two power ports, one for the engine and one for the lights/horn. I haven't been able to find anything that seems suited for splitting a 48volt 30amp connection into one 25 amp and one 5 amp. If anyone could share a blueprint and a quick explanation it would be greatly appreciated.

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    $\begingroup$ Can you please share make and model of the electric mope? $\endgroup$ – Mahendra Gunawardena Feb 12 '17 at 12:45
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    $\begingroup$ a part number for the correct battery may help $\endgroup$ – agentp Feb 13 '17 at 12:47
  • $\begingroup$ It's not the power: it's the output voltage. If they're the same voltage (highly unlikely) the most you'd need is an external fuse. $\endgroup$ – Carl Witthoft Feb 14 '17 at 14:46
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The two different circuits in parallel will draw current from the battery depending on their relative resistances you don't need to 'supply' a specific current to specific circuits.

Having said that :

  • the components in each circuit need to be rated for the maximum current which that circuit will draw.
  • Each outlet should be protected by a fuse or circuit breaker of an appropriate rating, ideally as close to the battery as possible.
  • It is entirely likely that some ancillaries work off a lower voltage than the motor (probably 12v) in this case you will need a transformer or voltage converter to provide the appropriate voltage.
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    $\begingroup$ indeed seperate voltages is probably why the batt had seperate ports to begin with. $\endgroup$ – agentp Feb 13 '17 at 12:44

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