Two 100w vs. 1 200w for RV use?
- Thread starter nicklee
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I’m assuming you mean ah; amps/amp hours instead of w (watts)
Watts = Amps x Volts
Personally; in my van and formerly my truck; I have 2 100 amp LiFePo4. One is strictly a battery and the other the battery component of an Ecoflow Delta2 “power station”. I like being able to use them independently and move the Delta independently.
The don’t put all your amps (eggs) into one box (basket) filosofy. But that’s just me. Every1 lives differently especially those of us not smitten by subdivisions, condos & apartments.
If you like 1 200 amp bat and it’s workin 4 u whose any1 else to say. I strongly considered it for myself but ultimately went a different way.
INTJohn
Watts = Amps x Volts
Personally; in my van and formerly my truck; I have 2 100 amp LiFePo4. One is strictly a battery and the other the battery component of an Ecoflow Delta2 “power station”. I like being able to use them independently and move the Delta independently.
The don’t put all your amps (eggs) into one box (basket) filosofy. But that’s just me. Every1 lives differently especially those of us not smitten by subdivisions, condos & apartments.
If you like 1 200 amp bat and it’s workin 4 u whose any1 else to say. I strongly considered it for myself but ultimately went a different way.
INTJohn
eDJ_
Well-known member
There are those who have chosen to use two lead acid 6 volt Golf Cart batteries tied together in series to give 12 VDC. (remember, you wouldn't want to draw these down below 50% charge) With LiFePO4 batteries, it is best not to draw them down below 20%.
Do your research and calculate your cost benefit analysis after considering your electrical power needs budget. (how many electrical
devices will you be needing power for and for how long will they be in operation......then how long between recharges will you be looking at)
Benefits (according to them) the plates in the batteries are thicker and more durable for long life.
This is just a suggestion for your consideration.
You can read more about battery bank systems here:
Van Living battery discussions
Example of a 6 volt deep cycle Golf Cart Battery
Duracell
Do your research and calculate your cost benefit analysis after considering your electrical power needs budget. (how many electrical
devices will you be needing power for and for how long will they be in operation......then how long between recharges will you be looking at)
Benefits (according to them) the plates in the batteries are thicker and more durable for long life.
This is just a suggestion for your consideration.
You can read more about battery bank systems here:
Van Living battery discussions
Example of a 6 volt deep cycle Golf Cart Battery
Duracell
rruff
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What I see looking online is that 100ah cost half as much as 200ah, and you get an extra BMS, they can be used independently, and they are easier to move around. So I'm not seeing an advantage to the 200ah.
IMO it's best to think of batteries in terms energy storage, which is in the units of Watt-hours (Wh). A 24v 100ah battery stores the same amount of energy as a 12v 200ah battery, or a pair of 12v 100ah batteries wired in parallel or series... all 2400 Wh. Keep your charging and consumption in W and your math will be consistent.
Watts are energy/time, or power... multiply by time to get energy. Amps are current, which is neither power nor energy... but if you multiply by the voltage you'll get energy.
Something that might or might not be a factor for you is physical space and weight. In my van, both were very much in play, so I have a 200 ah LiFePo.
