Trying to calculate 20Hr rate of "marine" battery

2twisty

I have a friend who has asked me to help her "figure out" her solar system. She is using 4 12v "marine" batteries in parallel. I'm trying to figure their 20hr rate. They say "101AH @ 1A"

Do you guys have any way to calculate a 20Hr rating from that?

Photowhit

2twisty wrote: »

I have a friend who has asked me to help her "figure out" her solar system. She is using 4 12v "marine" batteries in parallel. I'm trying to figure their 20hr rate. They say "101AH @ 1A"

Do you guys have any way to calculate a 20Hr rating from that?

I plugged it into google to see if a battery actually uses those terms and found questions asked about WalMart's EverStart Marine battery. I would guess what they are trying to suggest is that it will last 101 hours with a 1 amp load or a 100 hour rate of around 100.

For Trojan batteries 20 hour rates run about 10% less than 100 hour rates. In Marine type batteries.

Interstate's group 24 deep cycle marine is 84 AmpHour, but perhaps more of a true deep cycle battery...

Perhaps that info can give you a ball park?

2twisty

OK, that gives me an idea, anyway. I'll see if I can dig up anything on those WallyWorld batteries.