Hi, I have an old Jumpstarter + pressure inflator kit but i lost the charger
https://www.allbids.com.au/c/allbids-car-auctions/motor-vehi…
I have tried plugging in a 12v-3A
and 12v-2A
Both show the red light when connected but does not charge.
On the starter it says Voltage 12V Nominal Current:500AMP
Can any gurus help?
The internal battery may be shagged.