BATTERY BACKUP With SWITCH & LED
for 4 or 5 Cells
Power Back up System with Switch & Led
Very Efficient
Economically Priced
For use with a Second Battery Pack
Fast and Easy to Connect
Works with 4 or 5 cell packs
If you have ever run out of power in the air while flying, you will appreciate this HOT NEW Item. When Power Backer is turned on and the primary battery pack is on, Power Backer does not drain power from the secondary pack. If the MAIN battery fails for whatever reason, the secondary battery will take over and the LED light will light.
If it saves you once, it will save a lot!
Do Not use with Lithium Polymer Cells!
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Only $19.95
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