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Cox Engine of The Month
February-2019
balogh's

"Black Lynx .049 with a Throttle, Exhaust Deflector and Nelson-Galbreath head set"



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LiPo Battery for Starter

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LiPo Battery for Starter

Post  Levent Suberk on Thu Jan 25, 2018 12:36 pm

I found this board. It is a step down DC-DC converter and voltage can be adjusted to 1.5 Volts with trimpot and handle up to 5 Amperes. I will try it with 7.4 Volt LiPo battery for starting Cox engines.

https://m.banggood.com/XL4015-5A-DC-DC-Step-Down-Adjustable-Power-Supply-Module-p-945599.html
Levent Suberk
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Re: LiPo Battery for Starter

Post  Levent Suberk on Fri Feb 02, 2018 3:10 am

I received the board. Firstly I fixed the heatsink on IC with supplied double sided adhesive tape and soldered a suitable connector to board input for changing LiPo battery when necessary. I opened a hole on top of starter box and soldered the glow plug clip cables directly on board output. Bolts and nuts can also be used on box top for glow plug clip connection instead of this. I adjusted 7.4 Volts 1350 mAh LiPo battery output voltage to 1.5 Volts with trimpot. Board has been fixed on battery with hook and loop strips. Whole assembly easily fits in Cox battery box. Foam blocks can be placed in box for packing.

Cox starter battery box templates here

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