Batteries
I am going to buy new house batteries. I now have 2 12 volt batteries. Will I be better off putting back 2 6 volt batteries or 4 6volt batteries or just replacing what I have? I plan on doing a lot of...
Forum Discussion
Hi OhhWell,
Voltage drop becomes an issue with six volt jars because of the thicker plates. Batteries are tested at 25 amps draw. Four six volt jars do ok up to about 150 amps of draw--but would still exhibit more than twice the voltage drop of 4 similarly sized 12 volt jars.
I push my inverter hard--and am moving up to a 3000 watt. That will represent a load of 300 amps if it going "flat out".
On the reliability side of the coin, there are twice as many cells in four 12 volt jars--so the chances of a catastrophic failure are doubled.
What works well for me, won't necessary work well for another camper.
Voltage drop becomes an issue with six volt jars because of the thicker plates. Batteries are tested at 25 amps draw. Four six volt jars do ok up to about 150 amps of draw--but would still exhibit more than twice the voltage drop of 4 similarly sized 12 volt jars.
I push my inverter hard--and am moving up to a 3000 watt. That will represent a load of 300 amps if it going "flat out".
On the reliability side of the coin, there are twice as many cells in four 12 volt jars--so the chances of a catastrophic failure are doubled.
What works well for me, won't necessary work well for another camper.
OhhWell wrote:
Two 12v batteries in parallel do provide more instant amp draw (NOT necessarily CAPACITY) so I guess that would definitely be a major consideration if you have a massive inverter and only room for 2 batteries. Is the Amp drain level that small on 6v cells that the usual 2000-3000 Watt inverter would cause a problem?
some 12v cells do have high capacity but it is almost always cheaper to get a comparable amount of Ah capacity by going the 6v route.
I have no solar save a little 5W trickle maintainer panel built into my A/C shroud so... am I a sinner?
