First of all hey to everyone who reads this group, hope your well.
Anyways, in my latest project I am hooking up 2 OSMC's (open source motor controllers,
I have read that with NiMH batteries, they need to be connected to bridge rectifiers ala
I eventually plan to drop some serious dinero's for Lithium Polymer batteries, do those require the rectifier in parrallelling applications?
Finally for batteries, does anyone know of a link for a robust 24 volt battery charger schematic? Unbolting the batteries from eachother is tiresome, and I would prefer to be able to hook the entire battery network up a charger and not have to worry about it.
2nd set of Questions, regarding the capacitors: I recently found 7 25V 30,000uF electrolytic capacitors at a local surplus store, which I must admit just scare the bejeezus out of me.Now according to the manufacturer of the UPS that the batteries were ripped out of, the batteries have a nominal charging voltage of 27.6 or 28 volts or something in that area. If I connect these fully charged batteries to the circuit, will the caps be damaged by the over voltage?
How many of them should I use? the motors are 3 amps no load, and 8 amps full load, so in absolute worse case scenario there would be 32 amps drawn from the caps. is 210,000 uF overkill?
When I put the battery in the circuit, the first thing it does is charge the caps. It occurs to me that if I charged up the caps as well, it would give my application that much extra longevity between charges.
I have charged little caps before, but since these are like big white scary hand grenades I would just like a little brush up so they dont burst into flames/explode whatever. So essentially what is the best way to charge 7 x 30,000 uF caps up to 24 volts?
Thats all I can think of for now, if anyone wants to go ahead and reply, that would be absolutely great, and much appreciated. And if anyone has any resources about building electric vehicles with wheelchair motors link would also be appreciated.