charging electric scooter

It seems to be a bit sophisticated... You don't need the inverter, you should use a 12/29 V step-up power supply with 1200 mA current limiter. 29 V is not a typo, that's the charge-end voltage of the two serially connected scooter batteries.

wow

if you want to keep the batteries charged and in good shape they need to be charged seperatly. as well there are studies that say a high freqency charge will mean more life for the battery. you can do this by using a rectifier and a input on each battery.

see this site for info

http://www.manzanitamicro.com/

Trying to derive the optimum charging protocol for your batteries from what the scooter manufacturer has supplied may be difficult. Go the battery manufacturer's website and see what they recommend for charging voltage, current and when it should be charged. Then you can look at charging hardware.

thanks , I am using the chargers which come with the scooters, just running them through the inverter. just hoping to get minimum solar cell, minimum inverter

Cheap chargers are what kill batteries....are the chargers limited in how high they can drive the batteries voltage? (A voltmeter on the battery while charging would tell) If not, get rid of them!!!

hello,

the only difference between using invertor or not, is amount of power available. if you have unlimited solar power (meaning you do not max out your system) then the less efficient invereter is the way to go. if you have to watch every watt, then charge them directly from a 24v solar panel. you say it is a 24v system. then the battereies have one lead that goes from on battery to the other. the other two leads are the + & -. hook your solar panel directly to those. this is almost twice as efficient. reason the inverter changes dc to ac with a poor efficiency, then the power adaptor that came with the units, changes it back to dc with poor efficiency. also, no reason you can not charge both scooters at the time with a 24 volt unit. the more batteries the better. better able to handle the power from the panel. you will need to check battery voltage manualy though. if the scooters have charge meters, you just disconnect the panel, and look at the meter. some scooters also have charge rate meters. when it gets to 0, need to disconnect. to get automatic, costs more money somewhere along the line.

thanks , that's very helpful

thanks