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I want to connect four 12v 15ah agm batteries in series to create a 48v power source. Can someone let me know what thickness or specification cable I should use for this. Thanks
That depends upon what current you want to be able to draw from that 48V power source. What is the answer?I want to connect four 12v 15ah agm batteries in series to create a 48v power source. Can someone let me know what thickness or specification cable I should use for this. Thanks
Do you realise that, if it were running at it's full power (800W), you would get less than an hour out of 15Ah batteries, even when new/healthy and fully charged (although obviously longer at lower power)?I want to connect four 12v 15ah agm batteries in series to create a 48v power source. ..... The batteries will be used to power a 48v 800w brushless motor (hub motor as used on electric bikes picture attached.) I guess sometimes the throttle will be pulled back fairly hard but most of the time it would be for consistent speed.
Fair enough.Yes I didn't think it would be a very long time but enough for my young son to have a bit of fun in a paddock etc, the most ah possible for a small 12v agm battery is 15ah by the looks of it.
Well, 800W is jsut under 17A, so you would be looking for a cable intended for a very minimum of about 20A. However, to make the most of your limited battery capacity it would make sense to minimise voltage drop in the cable, so I would be inclined to go for something 'rated' for currents appreciably higher than that. There's no downside of getting 'too big', other than size, stiffness and cost. I would think that your best bet is probably to get cable designed for automotive use (i.e. go to a 'car shop').Any further thoughts about the cable etc?
?To be honest at 1 BHP I'd be more worried about falling off/taking off than it only lasting an hour!
it would help if you put some effort into making your point.
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