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Cox Engine of The Month
Engine starter battery box
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aungmyatoo- Gold Member
- Posts : 328
Join date : 2012-06-07
Age : 55
Location : Singapore
aungmyatoo- Gold Member
- Posts : 328
Join date : 2012-06-07
Age : 55
Location : Singapore
aungmyatoo- Gold Member
- Posts : 328
Join date : 2012-06-07
Age : 55
Location : Singapore
Re: Engine starter battery box
Those "D" size battery boxes are a great idea, and so cheap. I'm going to get a couple. I won't bother with the AA batteries in the adaptor case, just use D size Alkalines. Two cheap "D" size wired together and taped up have lasted me a real long time.
And hey, when the batteries get too flat in parallel I can swap the boxes around and put them in series to get a final few starts from them.
And hey, when the batteries get too flat in parallel I can swap the boxes around and put them in series to get a final few starts from them.
Oldenginerod- Top Poster
- Posts : 3970
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
aungmyatoo- Gold Member
- Posts : 328
Join date : 2012-06-07
Age : 55
Location : Singapore
Re: Engine starter battery box
Oldenginerod wrote:Those "D" size battery boxes are a great idea, and so cheap. I'm going to get a couple. I won't bother with the AA batteries in the adaptor case, just use D size Alkalines. Two cheap "D" size wired together and taped up have lasted me a real long time.
And hey, when the batteries get too flat in parallel I can swap the boxes around and put them in series to get a final few starts from them.
Careful with series batteries, it can burn off the filament in the engine head if over 1.5 volts.
aungmyatoo- Gold Member
- Posts : 328
Join date : 2012-06-07
Age : 55
Location : Singapore
Re: Engine starter battery box
aungmyatoo wrote:
Careful with series batteries, it can burn off the filament in the engine head if over 1.5 volts.
Well aware of that. I was young and stupid once (like most of us) and impatiently tried to start a stubborne engine with a little extra juice.
I would only do it to get the last from my batteries once they were too flat to work in parallel. Just unclip the boxes from the side-by-side position and connect them end-to-end, and your two half flat (.75 V) batteries make 1.5 Volts. Just trying to be a penny-pincher.
Oldenginerod- Top Poster
- Posts : 3970
Join date : 2012-06-15
Age : 61
Location : Drouin, Victoria
Re: Engine starter battery box
Good idea with the rechargeable AA Batts , alot of things i have take those same batts. So i bought a few and a charger / i don't know if the Ds would last longer though?
getback- Top Poster
-
Posts : 10116
Join date : 2013-01-18
Age : 66
Location : julian , NC
Re: Engine starter battery box
Rechargeable battery has 1.2 volt compare to normal single use battery of 1.5 volt.
The plus point for rechargeable battery is less internal resistance so it can produce higher current / amperage in short period.
It won't last long compare to D size normal battery, any way we can recharge several time.
The plus point for rechargeable battery is less internal resistance so it can produce higher current / amperage in short period.
It won't last long compare to D size normal battery, any way we can recharge several time.
aungmyatoo- Gold Member
- Posts : 328
Join date : 2012-06-07
Age : 55
Location : Singapore
Re: Engine starter battery box
I had thought of using a triple case that would use C cells, and stretching the springs to use the sub C cells. I guess it would be best to rearrange the cells to charge them. Can't forget to put them back to parallel before use. I still use the panel, but sometimes it is nice to have a more portable unit for control line stuff.
aspeed- Platinum Member
- Posts : 790
Join date : 2013-01-18
Location : Leamington Ont. Can.
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