12v to 48v Ecoflow alternator math?

[cgi2099]

Hey all, I was wondering if someone could help me with some math / losses with converting 12v to 48v with the Ecoflow Alternator.

Say I have two 12.8v 120ah lithium batteries (in parallel).

12.8 * 120 = 1536wh * 2 = 3072wh

I connect those two to the Ecoflow Alternator to boost to 48v. What is my wh loss or I guess my real question is what would my total wh be converting those two batteries to 48v?

I've asked Ecoflow and they rate their Alternator unofficially at 85-88%.

Would I divided 3072 by 4 for 768wh?

 

[outsider]

I think the efficiency relates directly to the converted energy, so it would be 3072 Wh x {.85 to .88} = 2611 to 2703 Wh output at 48 V.

If your converter efficiency were 100%, you'd get all 3072 Wh out at the new voltage, i.e. with no conversion loss. The amp-hours would be divided by 4, but the V multiplied by 4, for the same total VA-h = W-h output. But, the efficiency isn't 100%, it's given as 85-88%.

 

[cgi2099]

I think the efficiency relates directly to the converted energy, so it would be 3072 Wh x {.85 to .88} = 2611 to 2703 Wh output at 48 V.

If your converter efficiency were 100%, you'd get all 3072 Wh out at the new voltage, i.e. with no conversion loss. The amp-hours would be divided by 4, but the V multiplied by 4, for the same total VA-h = W-h output. But, the efficiency isn't 100%, it's given as 85-88%.

Thank you so much, this is better than I thought!

 

[ATX]

Hey all, I was wondering if someone could help me with some math / losses with converting 12v to 48v with the Ecoflow Alternator.

Say I have two 12.8v 120ah lithium batteries (in parallel).

12.8 * 120 = 1536wh * 2 = 3072wh

I connect those two to the Ecoflow Alternator to boost to 48v. What is my wh loss or I guess my real question is what would my total wh be converting those two batteries to 48v?

I've asked Ecoflow and they rate their Alternator unofficially at 85-88%.

Would I divided 3072 by 4 for 768wh?

EF Alternator boosts to 24V or so, not 48v.