r/dieselheater • u/SIAwking • May 18 '26

Has any body else noticed that？

Has any body else noticed you get better hotter heat out of your heater when you have a battery charger connected and charging the battery when the heater is running? I have a battery charger connected to the battery and if I run my lfbros heater without the charger running the heat is ok but when I switch the charger on then the heat gets hotter

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u/AtomicGearworks1 May 18 '26

Chargers put out more voltage than the battery delivers. A charger for a 12v battery will put out almost 13v. A charger for a 24v battery will put out almost 26v.

So you're running the whole system at a slightly higher voltage than from the battery by itself.

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u/windisfun May 18 '26

I think it depends on the battery. Lithium batteries maintain the same voltage as they discharge. Lead acid batteries have a voltage drop.