View single post by davecttr
 Posted: Thu Nov 2nd, 2017 11:55 am
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Joined: Sat Nov 9th, 2013
Location: United Kingdom
Posts: 492
jtrain wrote: If the engine is just meant for a slow speed, switching layout, then the battery requirements aren't as difficult to meet.  All you'd really need is enough juice to do an operating session, whatever length you normally run.

Good luck with your project!

I found the battery requirements were a lot less than I thought I would need. A typical operating session lasts about 2 hours and involves 12 to 16 locos. An individual loco does no more than 15-20 minutes work so no need for many hours of battery capacity. Most of my locos use 'UM' E-flite style batteries which I remove to charge. A large passenger loco pulling a 12 coach train at a scale 60mph draws about 400mA. A pair of 200mAh batteries will power that loco for about 50 minutes, plenty for my requirements
My diesel locos can also use 4xAAA size NiMh cells which give the equivalent of 1000mAh

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