Recently I've come across an old garaged mobility scooter, it's near 30 years old. But it's very clean and serviceable. The batteries have been removed, as the scooter won't power up from these old 12 Volt 34 Ah batteries. I get a terminal voltage reading of just over 3.5 Volts on each battery. Having a battery charger with a cell repair function, I've connected the batteries to this charger. I'm fairly Shaw that the batteries have had it and are dead as a doornail. What I wanted to try was powering up the mobility scooter to see if it will actually start up. Before I throw good money after bad and buy new batteries, I was hoping to at least see it turned on. I have a pair of 12 Volt server power supply I can put in series to get 24 Volts DC. Is it possible to just power up the scooter with a switch mode power source ? Or do you think the motor speed control module could be damaged by non pure DC. It really is just to see if it will power up, but I'm uncertain as 24 Volts from two server power supply's might not be welcomed by the scooter circuit. Any thoughts would be appreciated, before going and buying a pair of new batteries.
Thanks for reading.
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