I have found a dc to dc converter to step down the 58vlts from my ebike li-ion pack to 12vlts.
If the pack is rated at 12ah (at 58vlts) when stepped down to 12vlts it should be 58ah, correct?
I figure what actually is useful is Watt hours, this pack would be rated at 696 watt hours, when divided by 12vlts it comes out to 58ah.....
Reason I am doing this is to power my CPAP while on a 4 day sailing trip. Manufacturer of the CPAP recommends the use of a battery rated at 8ah for one night, so if my understanding is correct I’ll have more than twice what I need for three nights....
This is assuming that the 95% efficiency of the dc-dc converter is good. It’s made by Grinn, the guys that make the satiator charger so I’m betting it’s good.
If the pack is rated at 12ah (at 58vlts) when stepped down to 12vlts it should be 58ah, correct?
I figure what actually is useful is Watt hours, this pack would be rated at 696 watt hours, when divided by 12vlts it comes out to 58ah.....
Reason I am doing this is to power my CPAP while on a 4 day sailing trip. Manufacturer of the CPAP recommends the use of a battery rated at 8ah for one night, so if my understanding is correct I’ll have more than twice what I need for three nights....
This is assuming that the 95% efficiency of the dc-dc converter is good. It’s made by Grinn, the guys that make the satiator charger so I’m betting it’s good.