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TECHNICAL MOTOBRICK WRENCHING In Remembrance of Inge K. => The Motobrick Workshop => Topic started by: Shoganai on July 21, 2011, 04:35:43 PM

Title: Charging a CPAP battery while riding
Post by: Shoganai on July 21, 2011, 04:35:43 PM
Ok, now wiring a system so that I can use my CPAP (sleep apnea machine) while camping w/o AC power.

First, the special batteries for this machine will not accept a charge via DC power according to the company that makes them.

Below you see AC/DC power inverter, the battery pack w/ DC female coupling, and the AC wall plug to DC male plug.

(http://shoganai.smugmug.com/photos/i-9nCrmLW/0/L/i-9nCrmLW-L.jpg)

The power for the whole thing is pulled thru the Blue Sea fuse block.

(http://shoganai.smugmug.com/photos/i-wzfNjZh/0/L/i-wzfNjZh-L.jpg)

All tucked in.

(http://shoganai.smugmug.com/photos/i-L8QTVZG/0/L/i-L8QTVZG-L.jpg)

Due to the power draw and risk of it running and me forgetting that, Steve wired in an external switch here. (note the fob for the dimmer below)

(http://shoganai.smugmug.com/photos/i-LmVpVzB/0/L/i-LmVpVzB-L.jpg)

I wired in a LED dimmer.

(http://shoganai.smugmug.com/photos/i-3kLHn8s/0/L/i-3kLHn8s-L.jpg)

Low.

(http://shoganai.smugmug.com/photos/i-F3Qxq7r/0/L/i-F3Qxq7r-L.jpg)

Medium.

(http://shoganai.smugmug.com/photos/i-ckBS64z/0/L/i-ckBS64z-L.jpg)

High.

(http://shoganai.smugmug.com/photos/i-pKjRdzc/0/L/i-pKjRdzc-L.jpg)

That way if the charger is running I can tell by the LED.
And the dimmer makes it good for day or night.