Solar and Lifeline
Hi y’all First thanks to all who have tried to help with this project I finally got my Renogy system up and running. 4 -100 watt panels on the roof. 30amp mppt controller, 2000w pure sine wave inve...
Forum Discussion
However you want to split it the rule about not leaving AGM batteries undercharged can not be violated without consequences. The deeper the OVER discharge the more often the battery must be 100% charged. The MORE the 20% of capacity rule applies.
So what is worse. Leaving a battery at 95% capacity for a year?
Or
50% full for six months?
Battery management? I sip a hot cup of Chiapas coffee and enter the gen shed. Batteries are at 24.2
I press the starter button and twirl the timer for 3.5 hours.
210 minutes later the generator disconnects from load. H-Rummmmm. I wander uphill and turn the key off. Five minutes later the gen shuts off. I return to a glass of mineral water and pick up my e-Book. Captain Snotrag is about to be jettisoned through the airlock.
The physical effort of it all is becoming unbearable. A person should't have to go through all that to maintain a measely 3,300 amp hours of flooded batteries. BTW charging amperage at shutdown was 13.88 so next time maybe another 20 minutes or so?
AGM would be easier. Just look at the ammeter. Sixteen? Fully charged? CLICK
20% of 3300 is 660. The big charger + the lombardini + the small charger + 120 amps from the 4024 Trace total is more than a thousand amps. But 70 100 watt panels + say 100' of 250 mcm cable would be a tad costly. And a few hundred feet of No 2, 4, 6. and 8 interconnects are not cheap.
It's all a matter of perspective -- not assumption.
Demanding that power be 100% solar reminds me of cruising sailboat skipper who demand every inch of the voyage be done under sail. Neh what's arriving a week later than everybody else? Oh wait, they're all gone and are halfway to the next port.
Back when I horse packed I noted purists walked with a sixty pound pack and ate dehydrated hog glop. Could smell them coming. Thirteen days without bathing because of forty four degree stream and lake temps. Whatever turns ya on.
So what is worse. Leaving a battery at 95% capacity for a year?
Or
50% full for six months?
Battery management? I sip a hot cup of Chiapas coffee and enter the gen shed. Batteries are at 24.2
I press the starter button and twirl the timer for 3.5 hours.
210 minutes later the generator disconnects from load. H-Rummmmm. I wander uphill and turn the key off. Five minutes later the gen shuts off. I return to a glass of mineral water and pick up my e-Book. Captain Snotrag is about to be jettisoned through the airlock.
The physical effort of it all is becoming unbearable. A person should't have to go through all that to maintain a measely 3,300 amp hours of flooded batteries. BTW charging amperage at shutdown was 13.88 so next time maybe another 20 minutes or so?
AGM would be easier. Just look at the ammeter. Sixteen? Fully charged? CLICK
20% of 3300 is 660. The big charger + the lombardini + the small charger + 120 amps from the 4024 Trace total is more than a thousand amps. But 70 100 watt panels + say 100' of 250 mcm cable would be a tad costly. And a few hundred feet of No 2, 4, 6. and 8 interconnects are not cheap.
It's all a matter of perspective -- not assumption.
Demanding that power be 100% solar reminds me of cruising sailboat skipper who demand every inch of the voyage be done under sail. Neh what's arriving a week later than everybody else? Oh wait, they're all gone and are halfway to the next port.
Back when I horse packed I noted purists walked with a sixty pound pack and ate dehydrated hog glop. Could smell them coming. Thirteen days without bathing because of forty four degree stream and lake temps. Whatever turns ya on.
