Both my wife and I have relatively high pressure settings (13 and 16) on S8 CPAP machines. In addition we like to use humidifiers, so our total draw is 15 amps or 7.5 per. The S8 requires a reverse polarity compared to most machines. I would think this polarity switch would cost AmpH too.
Previously we tried some batteries from CPAP Batteries Inc, but found they only lasted 4 hours without humidifiers.
To their credit, CPAP Batteries Inc did refund us minus 15% restock.
Has anyone used batteries from the Battery Geeks for the same amount of Amps, humidifiers and pressure setting ?
N-C13500 claims 8hrs.-16hrs. runtime per charge on average*
N-C20000 14hrs.-24hrs. runtime per charge on average*
N-C40000 28hrs.-48hrs. runtime per charge on average*
* please note that run times will vary based on machine make & model, pressure settings, inverter/converter use, and humidifier use. (their disclaimer - and the reason for my question)
Of course battery performance depends on temperature too, so please let me know what the environment was you observed your battery's performance in.
Thanks for your help.