backup battery

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yoloflyer
Posts: 15
Joined: Sat Aug 24, 2013 4:41 am

backup battery

Post by yoloflyer »

I'm about to upgrade the Sport SX that I installed years ago to an HXr. When I installed the Sport SX I also installed the Power Safe backup battery for backup power. On the EFIS Accessories documentation web page it indicates that this backup battery is for the Sport SX only; the TCW backup batteries are recommended elsewhere as backup batteries for other EFIS systems. Is there any technical reason why I can't continue to use my current backup battery as a backup power source for the HXr display?
GRT_Jeff
Posts: 802
Joined: Tue Dec 11, 2012 12:11 am

Re: backup battery

Post by GRT_Jeff »

The HXr uses a lot more power than the SX so it can drain our battery fast and not give you enough backup time. Our battery is 2.2 amp-hours. TCW has higher capacity batteries.
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