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Member
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Join Date: Oct 2013
Location: Salvo NC / Glen Allen VA
Posts: 782
Real Name: Ted A Hamilton
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Member
Join Date: Oct 2013
Location: Salvo NC / Glen Allen VA
Posts: 782
Real Name: Ted A Hamilton
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Using Oxygen (O2) Concentrator in T4R
These are used to supply O2 to folks needing it when traveling. They can be supplied by 12v DC.
I have searched and found nothing related. BTW I am a mechanical type with only rudimentary electrical experience. So this might not make sense to some more experienced.
I am attempting to use an Oxlife Independence (at 2.0 LPM) in my 2016 Toyota 4Runner and a 2008 Lexus ES 350. Both have 12v 10 amp rated outlets. The machine per operator manual should both be powered by the vehicle and charge the battery at the same time.
In both vehicles, using the 12v outlet on the dash, closest to the battery, (as recommended by the operator manual), the Oxlife after a few minutes disconnects from the vehicle power and reverts to battery. Sometimes in the Lexus it stays powered by the vehicle but does not charge the battery, and yes the battery needs charging.
Both vehicle electrical systems are working properly per dealer. If the unit is unplugged and replugged after about 30 sec, it will be powered by the vehicle for a short time then revert to battery. And yes the vehicle receptacle has power as indicated by a light and the plug has not come loose. There is no indication on the unit it is using external power and in the case of the Lexus, the indication sometimes indicates external power but there no indication the batt is being charged.
I notice the operator manual recommends a 15 amp circuit vs 10 amp.
My guess is the unit is drawing enough amps to lower the voltage to below 11.5v which will activate an external power disconnect on the machine, as the circuit is rated at 10 vs 15 amps, and the low voltage disconnect on the O2 machine is activated.
I have also tried an Eclipse 5 machine, which will operate like the Oxlife on 12v DC, with similar disconnect results.
The supplier of both the machines of course says it is a vehicle problem.
I am thinking I could possibly install another 12v outlet rated at 15 amps vs 10 amps but neither the dealer or my independent trusted mechanic will do it.
Any thoughts would be appreciated.
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Ted A. Hamilton
(aka Salvo Jimmy)
Glen Allen VA
2022 SR5 Premium 4WD
No Mods, Yet😇
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