I have an folding electric scooter with the name "jet stream" on the side.
It has a regular sized barrel plug socket for charging (also called DC power plug)
it contains 2 12v 7ah SLA batteries.
I have searched online but cannot find any information under the name "jet stream"
Would this be the same as a more common electric scooter I could learn about?
What voltage, and polarity should I use to charge it? I have tried small amounts of DC with center positive or negative and also AC 24v and it seems to act the same. the green light comes on but it only pulls approx 0.2Amps.
I am planning to install barrel plug sockets on each battery directly so I can have more control of the charging (also my tenergy lipo charger which does PB(lead) batteries does not do more than 20volts.)
I have car chargers(both regular and float), 2 car batteries, and some old broken stereo equipment that I might be able to use the transformers from for charging.
If I were to convert it it lipo batteries, what is the minimum size I could get away with? I would only need a 5 minute run time to try it out. I weigh 230lbs, but it does not seem to have problems moving me other than the fact that the SLA batteries are very old and weak.
In the photos, the red multimeter on the handlebars is so I could watch the voltage as I rode, the exposed wires were for charging.
Thank you for any assistance.