We bought this along with the $15 Talentcell DC7406 cable (link below) to power an AirSense 10 CPAP while camping. We tested it from full charge until the battery died. With the humidifier turned off and no heat (ours does not have that option) this battery lasted about 10 hours. That is plenty for one night of usage, but will need charged each day. Note that we have not owned this for a long period of time and therefore do not know how well it will age.Link to cable: https://www.amazon.com/gp/product/B07RFH6JQJ
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