Hello,
I don't know how many Ah must have a battery to leverage the max. power from the servo (specifications attached).
Please, can anyone help me?
With a battery 18v 3ah would be the best option?
Thanks!!
Hello,
Ah = amps per 1 hour
So a 3Ah battery could deliver 3 Amps for 1 hour.
Your motor need 18V at a maximum of 5A
So an 18V, 5Ah battery would last for 1 hour if you run your motor with the maximum load
First determine how much power you need in amps. Multiply that times the number of hours you want, then multiply that by 1.1 (approximate efficiency of converter). Next you need to pick a battery voltage, as 18V is not readable available in many areas you should look at 12V or 24V batteries. Consider a SEPIC converter, that would work with a wide range of batteries. You will also have to ratio the 18V to your battery voltage to adjust for current. Lower voltage more current.
Generic-off-the-shelf ebike batteries can deliver 24/36/48/52vdc with 10/14/18Ah capacity. Approximate costs €500 - €1500 (240Wh to 1000Wh). Multiply V time Ah to get Wh (this is a useful number to compare different battery sizes). I am use "bad/scrap" 48v ebike batteries (with bad parallel groups so only 240Wh = 48v * 5Ah) with a 5vdc USB port that keeps projects alive for a couple weeks.
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