3 ms·
Sorry if I was unclear - it is the other way around. The LiFePO4 is before the Lead. So it is: Solar -> Charge Controllers -> LiFePO4 -> DC-DC Charger -> Lead
by roflyear 4y ago
Sorry if I was unclear - it is the other way around. The LiFePO4 is before the Lead. So it is:
Solar -> Charge Controllers -> LiFePO4 -> DC-DC Charger -> Lead -> Load
In this configuration, yes, the lithium is always charging the Lead, and the DC-DC charger is creating heat. But the DC-DC charger is not two ways. So the lithium does not get charged.
But the benefits are above, and also you can make the lithium bank a higher voltage bank (so 24v, or 48v, or whatever) which has benefits for your solar: you can use smaller wire.