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Charging Leisure Batteries on Idle

L

Lightning

Messages
1,663
Location
Bristol
Vehicle
T6 Ocean 204
It’s absolutely pouring with rain, so setting up the little Honda generator was not appealing.

I noticed that on idle with the (LED) headlights off current draw to the Leisure batteries is actually negative between -5A & 0A, and with the headlights on it’s always positive >20A. This is repeatable.

It must be to do with the blue motion technology, the alternator output appears to turn off when it’s load is reduced.

Worth being aware of this if you ever need to charge up you’re leisure batteries using the engine idle or you could waste time inadvertently draining them.
 
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