I would make a conservative estimate of 1 amp per hour. If you use a 115 ah battery until 75% depleted, you'll get 86 hours of sleep. That's 10.75 nights of 8 hour sleep. That would be almost too good to be true.. I need 10 or 11 nights and if I don't have to worry about recharging too much ... it'...

Wow guys ... thanks for all the help! I'm wondering how long a marine battery with 115 AH will run my REMstar Plus machine running at 5 CM before it NEEDS a recharge?( no humidifier) I've already pretty much given up the idea of solar re-charging as I'm in the Pacific Northwest. Even though we're ha...

Hello all; After reading through the HUGE amount of posts on this subject, I still find myself needing a little clarification. First - I understand that a deep cycle battery will power my CPAP for 'several nights' ..but if I'm going camping for a longer period (in this case, 10-14 days) am I out of ...