The power and longevity of a battery is noted by its Amp Hour (Ah) rating. Basically, this denotes how long a battery will last if it isn’t recharged. For example if a battery is rated as, say 8Ah, it will be able to provide 4 amps for 2 hours. If a battery is rated as 100Ah, it will produce 100 Amps for 1 hour.
No idea what battery a mobility scooter uses, but as a comparison, On average, a car battery can maintain about 5amps for ten hours. That makes such a battery a 50amp hour battery. That is equal to around 600-watt hours
As an example, an iPhone 12 uses a 2000 (ish) mAh battery – 1000 mAh is equal to a 1 Amp Hour (AH) rating so the mobility scooter battery will not go flat by the phone charging as the phone will use 2 amps of the 50 from the mobility scooter battery per charge (ish)
Cheers that answers my question, I was looking at those things on the well know auction site, but you have to keep taking them out and I would lose it, I have 2 12v 75 ah batteries so should not have any problems so will wire it direct to batteries that way if I ever break down.
Broke my back so need my scooter to get around as walking is a bit difficult and forever forgetting to charge my phone may also put it in the back box and add 5v usb led light, so I can see what I’m doing when I am in the garage when I get home from the pub after dark and a bit tipsy
I wish I could get to the Bridge, not been for years used to go every home game but unfortunately cant do it now. Even with big 75 a/h batteries it wont make it to London so stuck with going to the pub or finding a dodgy link