Bigger house battery, or more?

Looking to add some extra power to my work van - 2024 Ram pro master 3500. Charge batteries, lights, maybe a small microwave. Maybe even a tiny fridge during the summers. Starter battery is 12v, size 49 with anywhere from 850-950 cca. Not sure of the chemistry. So my question is do I get a big battery or parallel more smaller batteries together? I’m assuming it would be easier to add batteries down the line to add longer lasting power, but what are the disadvantages? My only source for charging would be the engine, but I drive frequently, and am not living in the van, nothing running 24-7, or at least to start. Is there a difference in charging a bank of batteries instead of 1? Thanks!!! Edit- I plan to charge solely from the alternator, but I’ve seen setups that have separate charger for each battery, or a set of batteries. submitted by /u/midcitychef [link] [comments]

Looking to add some extra power to my work van - 2024 Ram pro master 3500.
Charge batteries, lights, maybe a small microwave. Maybe even a tiny fridge during the summers. Starter battery is 12v, size 49 with anywhere from 850-950 cca. Not sure of the chemistry.

So my question is do I get a big battery or parallel more smaller batteries together? I’m assuming it would be easier to add batteries down the line to add longer lasting power, but what are the disadvantages? My only source for charging would be the engine, but I drive frequently, and am not living in the van, nothing running 24-7, or at least to start. Is there a difference in charging a bank of batteries instead of 1? Thanks!!!

Edit- I plan to charge solely from the alternator, but I’ve seen setups that have separate charger for each battery, or a set of batteries.

submitted by /u/midcitychef
[link] [comments]