It won't 'jump start from the mains'. You need to let the battery charge and then try.
The charger needs to refill the amps in the battery. Depending on the charger it may be adding a few amps per hour, a car battery might need 150amps depending on the size of the engine so it takes a few hours.
It won't 'jump start from the mains'. You need to let the battery charge and then try.
The charger needs to refill the amps in the battery. Depending on the charger it may be adding a few amps per hour, a car battery might need 150amps depending on the size of the engine so it takes a few hours.