Choosing a Battery

The fuse protects against short circuits with the battery as the source. The charger cannot supply 7.5 A, go by the 3A charger rating.

I'm currently using a resmed 10 for home and have an airmini for travel if needed, big deep cycle marine battery for home outages with battery tender and the resmed dc converter. I also have a now discontinued Medistron 24 + which I can get a few nights of airmini usage from. I have cables to use the medistrom with either of these machines. I can charge the medistrom using my 10 brick or buy a car charger for $35. I plan to get a U1 battery for camping trips exceeding the range of the medistrom.

I'm anticipating getting a resmed 11 which I gather has a different proprietary power plug. Anybody know if there'll be an alternative to buying another overpriced dc converter? Does anyone see any other issues I should consider in anticipation of adding a resmed 11 to the arsenal?

Bubba in NC wrote: ↑

Tue Jul 20, 2021 6:31 am

Anybody know if there'll be an alternative to buying another overpriced dc converter?

+1

I hope a member will point us to a simple plug adapter.

Bubba in NC wrote: ↑

Tue Jul 20, 2021 6:31 am

Does anyone see any other issues I should consider in anticipation of adding a resmed 11 to the arsenal?

If you already have a resmed 10 stick with it - get another to fit the adapter you already have or give in and make em rich.

VERY GOOD (though not perfect) CAMPING CPAP SETUP - LIGHT, SMALL AND CHEAP

I use a Dreamstation @8.5cm pressure with no humidification or heating. I get 17-18 hours of use with this lithium battery bank (https://www.amazon.com/gp/product/B07P8 ... UTF8&psc=1).

The battery is less than half the size of a book and weighs only about one (1) pound. I get about 17-18 hours of use (with ramp engaged for 20 mins). It's not a jump starter, just an 88.8 wH backup battery. That means it's OK to fly with. Battery cost is about $80. No wiring needed, though you do need the 12V Dreamstation cigarette lighter cord. This is a relatively inexpensive, simple, lightweight, compact, no-setup system that is fairly foolproof. Recharges in about 5 hours on 120V AC; also charges using a car cigarette lighter from the car in about 4 hours, though to only about 90%.

Note: the battery also has a 120V AC outlet, but it's just a built-in inverter that, due to the inherent inefficiency of inverters, should not be used if you're interested in maximizing CPAP usage time; the AC option might be useful for other applications.

Bubba in NC wrote: ↑

Tue Jul 20, 2021 6:31 am

I'm currently using a resmed 10 for home and have an airmini for travel if needed, big deep cycle marine battery for home outages with battery tender and the resmed dc converter. I also have a now discontinued Medistron 24 + which I can get a few nights of airmini usage from. I have cables to use the medistrom with either of these machines. I can charge the medistrom using my 10 brick or buy a car charger for $35. I plan to get a U1 battery for camping trips exceeding the range of the medistrom.

I'm anticipating getting a resmed 11 which I gather has a different proprietary power plug. Anybody know if there'll be an alternative to buying another overpriced dc converter? Does anyone see any other issues I should consider in anticipation of adding a resmed 11 to the arsenal?

Why do you need a proprietary inverter if a standard 150 watt inverter with battery terminal connectors (to a deep cycle marine battery) and AC three prong plugs should work?

Justin Case wrote: ↑

Sat Jun 17, 2023 4:06 am

a deep cycle marine battery

My battery shop told me to get an equivalent mobility battery. Mobility batteries are lighter in weight. Marine batteries have heavier reinforcement to withstand the beating boats take.

ChicagoGranny wrote: ↑

Sat Jun 17, 2023 6:11 am

Justin Case wrote: ↑

Sat Jun 17, 2023 4:06 am

a deep cycle marine battery

My battery shop told me to get an equivalent mobility battery. Mobility batteries are lighter in weight. Marine batteries have heavier reinforcement to withstand the beating boats take.

Interesting. I imagine mobility batteries are also more expensive than marine batteries especially since most insurance providers reimburse their plan members if they have a medical need for a mobility scooter. I think marine batteries are the least expensive option now although they have risen sharply in price thanks to greedflation.

I bought a Duracell Ultra 12V 18AH Deep Cycle AGM SLA Battery for $79 in 2019. It will run my CPAP for two nights without recharging. I see you can currently get the same battery in a 35AH for $103. Cheap.

Don't let your political biases drive a bad consumer decision.