Easyyokefilms
New Member
Hello, I would like to ask. I have two 12V, 100ah Redodo LIFEPO4 battery. Bought the two batteries thesame time and I have been using them in a parallel configuration to get 12v, 200ah. Of recent I ran into an issue… I have a 40A mppt charge controller. But at 12V, the maximum wattage that the controller will deliver is 600W. This takes about 5hours to fully charge the 200ah battery. I will like to shorten the charge time. Redodo states that their 200ah battery can safely accept 100a(1200w, shortening my charge time to about 2hr30mins) However since my battery is in a 12v configuration, my 40A controller will only deliver 600w max - (40A at 12V) and I do not have the budget to buy another separate controller so I am thinking, can I wire the two batteries in series to change their configuration to 24v 100ah so that my controller can harvest 1200W of solar Pv(40A at 24v). And then when the battery is done charging, I can change them back to parallel connection(revert them back to 12v, 200ah) because I dont have a 24V inverter. I know the safety rules
1. When I am charging the batteries at 24V, I intend to remove my 12V inverter to avoid the voltage from spoiling the inverter
2. The batteries are thesame brand, thesame capacity, bought at thesame time.
3. The max recommended charging Amp for the 24v 100ah is 50amp(1200w) for charging the batteries so I wont go above 50amp. My controller is even 40amp. So I cant go above it.
But I was just wondering, will charging the battery in 24v configuration(series) and then discharging in 12v configuration(parallel) have any negative effect on the batteries?
1. When I am charging the batteries at 24V, I intend to remove my 12V inverter to avoid the voltage from spoiling the inverter
2. The batteries are thesame brand, thesame capacity, bought at thesame time.
3. The max recommended charging Amp for the 24v 100ah is 50amp(1200w) for charging the batteries so I wont go above 50amp. My controller is even 40amp. So I cant go above it.
But I was just wondering, will charging the battery in 24v configuration(series) and then discharging in 12v configuration(parallel) have any negative effect on the batteries?