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
I tried the other-type of lithium battery. Non rechargeable for flashlights clocks, etc.
For me, they put out less amp hours at high loads than top quality alkaline AAA, AA,C, D, sizes. Died sooner and the difference was not subtle.
What I did for RV'ing with flooded and AGM batteries, is to change ME, not try to reinvent what the batteries SHOULD do, according to my wishes.
With lithium disposables the answer was simple -- stick with alkaline.
So with the RV I changed my habits. Having a hard head makes things worse.
I would have light usages days on the beach. Then the following day the batteries would gain 20% -- 30%
The SIMPLE fix would have been to have enough panels to charge to 70% of capacity in three hours and then after they're full have 3 or 4 hours of daylight left to take the batteries to 90+%.
Too many people believe in an amp hour fallacy. They simply forget to subtract the amp hours used during the day. Sucking 20 amp hours a day does not go away simply because the panels are lit up.
This means having a lot of wattage up on the roof. Yes the expensive type lithium batteries are far less prone to be damaged but please whisper in my ear again...how many thousands of dollars extra did you spend to lose how many amp hours capacity with regard to advertised amp hour capacity? Yes you may run them at 50% capacity. How many dollars per amp hour are you getting? If you burn 250 amp hours a day and have full rated 250 amp hours total battery capacity being used -- this leaves you where?
Without question an intelligent choice in tiny generators and a charging system designed around the generator is the most economical way to go, purchase and operating cost is at a bare minimum.
40 amps for five hours after sunset equals a lot of solar hours.
Or a person can run around in circles perfecting the least damaging way to maintain their batteries. The new math?
For me, they put out less amp hours at high loads than top quality alkaline AAA, AA,C, D, sizes. Died sooner and the difference was not subtle.
What I did for RV'ing with flooded and AGM batteries, is to change ME, not try to reinvent what the batteries SHOULD do, according to my wishes.
With lithium disposables the answer was simple -- stick with alkaline.
So with the RV I changed my habits. Having a hard head makes things worse.
I would have light usages days on the beach. Then the following day the batteries would gain 20% -- 30%
The SIMPLE fix would have been to have enough panels to charge to 70% of capacity in three hours and then after they're full have 3 or 4 hours of daylight left to take the batteries to 90+%.
Too many people believe in an amp hour fallacy. They simply forget to subtract the amp hours used during the day. Sucking 20 amp hours a day does not go away simply because the panels are lit up.
This means having a lot of wattage up on the roof. Yes the expensive type lithium batteries are far less prone to be damaged but please whisper in my ear again...how many thousands of dollars extra did you spend to lose how many amp hours capacity with regard to advertised amp hour capacity? Yes you may run them at 50% capacity. How many dollars per amp hour are you getting? If you burn 250 amp hours a day and have full rated 250 amp hours total battery capacity being used -- this leaves you where?
Without question an intelligent choice in tiny generators and a charging system designed around the generator is the most economical way to go, purchase and operating cost is at a bare minimum.
40 amps for five hours after sunset equals a lot of solar hours.
Or a person can run around in circles perfecting the least damaging way to maintain their batteries. The new math?
