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Probably not real practical as I have a 24 volt MPP solar, so I"d end up having to use a step down regulator to charge. That's kind of what I'm doing right now with my DC to DC Victron, expect the other way>>12>24. For solar and shore power I can output 24 volts directly, as the current bank is...

I really prefer to get the bank fully charged as quickly as possible. When it goes into it's discharge / standby mode it's using power to run those fans, (60 watts or so) and doesn't seem terribly efficient. Would be nice just to get up to full charge and then shut off. It doesn't do that...

I did have the MPP solar set at 3.5. It didn't make any difference as to the final stabilized voltage. Is still settles around 3.3. The voltage differential is pretty tiny. Something like .002, so I think the cells are pretty well balanced. I did top balance them before starting. Again, during...

I guess I'll just keep these extra four as spares or wire up something for home use. I don't think I want to shell out another $500 plus for four more batteries, and I'd be into several hundred pounds at that point. Of course that would give me a 1.2 KW AH setup. I can't imagine needing that...

And I'm guessing it wouldn't be a disaster it's just that one one of the banks reached low voltage that would be the weakest link and shut off the whole 24 V bank, so there would be no advantage to adding the extra 4 in parallel.

Would like to somehow use these extra four batteries. Any ideas?

It looks like I screwed up that wiring diagram, but sounds like two 12 volt banks with different amp hour ratings is a disaster waiting to happen.

Hi folks: So I currently have a 24 volt set up using eight 304 AH Eve cells. I'm using an 8S current connect BMS. I had some problems initially with my vendor from China, and long story short, I ended up with an extra four batteries, so I now have 12. I don't want to get into replacing the BMS...

I think I traced it back to the settings in the MPP solar all in one Inverter/charger. I'm not sure if I should just put it on auto, and let the BMS manage the total charging or set the maximum voltage in the MPP solar/ Inverter. I notice if I set the MPP solar at 3.6, The cells (or at least 1...

Yes to the BMS stopping the charging or cutting it off IOW. Overvoltage is set to 3.65, pack voltage set to 29.2. Charger powers way down at 3.5 and then stablizes at 3.384 and .007 voltage diff. I will take a closer look at the charger settings tomorrow, as maybe that's the issue?. I'm using...

So, beginners question here. I purchased eight 304 AH Eve cells, Which are wired up in series for a 24 volt system. The BMS is I believe the same brand that Overkill solar sells. I initially top balanced the entire pack in parallel up to about 3.58 volts. All good. When I go to charge the...

Oh, and to answer your other question, the biggest consumers are cooking appliances, induction cooktop air fryer, etc. Using propane though for hot water, and and I have one of those cheap Chinese heaters for heat, similar to the wabasto/Espar.

Ooops LiFePo?. I'm a newbie so cut me some slack! I'm learning here. Lithium iron phosphate not lithium polymer. I just mentioned in my other post about the parallel option. Definitely expensive but doable. Thanks for the reply.

Thanks Mike! I just look yesterday at sterling's new DC to DC converters, but boy are they pricey. Someone else mentioned wiring up up two Orion's in parallel. I had not considered a 12 V inverter, so will check prices on that today. May be a cheaper option? I've got a Chevy express Van, and...

I've got a 24 V system consisting of 620 amp hour LIPO batteries, which is then connected to an MPP solar all-in-one inverter/charger. I would like to be able to use my alternator to charge the batteries when in route. I was looking at the Victron 12/24 DC to DC 3 stage charger, but they are...