Voltage drop ?

[john]

I have a bike with all dc accessories.Headlamp,taillight,gauge lights etc.When turning on the key on a battery with only 12.2 volts what is the typical voltage drop.The headlamp is an automotive 30 amp.

[usman12]

With that much load, there’s definitely going to be considerable voltage drop. What is the no-load, fully charged voltage on the battery? And what is the amp hour rating of the battery? 12.2 doesn’t sound abnormal for that load.

[honey]

366 Watt headlamp lol that’s a killer. 😛 Is it a 30W? Whats the battery capacity?

[john]

it’s an automotive sealed beam lamp I have bee running on the bike since 2008 pretty common on motorcycles.IIRC it’s a 5001.But that wasn’t my question.

[manidon]

Yeah, 30A would cook the wiring and discharge the battery quick.

Can we say ‘Magic Smoke’????

• This reply was modified 6 years, 6 months ago by manidon.

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