I am going to install a ~7800Wh battery bank at 24V system voltage for my cabin in Sonora, CA.
I'll use a number of 12 Volt batteries.
Is there a difference in terms of capacity usage/ load performance/ overheating risks/ charging performance etc. between using 96Ah batteries or a 250Ah batteries?
In other words, is 'using the largest size batteries for a battery bank' recommended over 'using more number of batteries'?
Submitted
13 years 7 months ago
Comments
Cons to using multiple strings to 1 string:
1. Multiple cables increase voltage drop
2. More batteries / more connections to maintain...flooded product, more cells to water.
3. Charger - multiple strings may require larger charger
4. Depending on local codes - each string may require a breaker / fuse.
Pros to using multiple strings to 1 string:
1. If one string would fail, would still have back up, but at reduced time.
2. String replacement...cost could be defrayed by replacing one string at a time. (one per quarter)