- Joined
- 11 Jan 2004
- Messages
- 42,936
- Reaction score
- 2,691
- Country
Hi folks
I'm trying to work out how to run an air pump off a leisure battery.
I'm planning on buying a 75Ah 12V battery:
http://www.gooutdoors.co.uk/numax-75ah-sealed-leisure-caravanning-battery-p96547
Problem is, the air pump is run off 12V, but has to run via a PSU: it cannot run direct from the battery.
The PSU has the usual universal input of 100-240V 50/60Hz (1.2A) and an output of 4.16A at 12V.
The air pump is rated at 12V 3 Amps max.
I realise I need to connect it via an inverter:
http://www.gooutdoors.co.uk/maypole-inverter-500w-caravanning-electrical-set-p140175
to this battery to run the air pump, but, assuming a good charge, how many hours use will I get before the battery needs recharging?
Thanks.
I'm trying to work out how to run an air pump off a leisure battery.
I'm planning on buying a 75Ah 12V battery:
http://www.gooutdoors.co.uk/numax-75ah-sealed-leisure-caravanning-battery-p96547
Problem is, the air pump is run off 12V, but has to run via a PSU: it cannot run direct from the battery.
The PSU has the usual universal input of 100-240V 50/60Hz (1.2A) and an output of 4.16A at 12V.
The air pump is rated at 12V 3 Amps max.
I realise I need to connect it via an inverter:
http://www.gooutdoors.co.uk/maypole-inverter-500w-caravanning-electrical-set-p140175
to this battery to run the air pump, but, assuming a good charge, how many hours use will I get before the battery needs recharging?
Thanks.