Blue Peter whirlin thingy

[old rooster]

Depends how long you plan staying awake. I'd say go for the £19 one if using a wiper motor. Don't forget you'll need a proper charger for this as a car charger will knock the bo**ox out of this type of battery as they charge at too high a current.

 

Jonno has used some so he should be able to advise.

[Catamong]

OR,

 

Thanks for that - Jonno - any advice on a good charger.........

[old rooster]

OR,

 

Thanks for that - Jonno - any advice on a good charger.........

Ask the peeps at the place I've mentioned in the previous posting, I spoke to a rather nice French lady there, very helpful indeed

[jonno 357]

OR,

 

Thanks for that - Jonno - any advice on a good charger.........

Old rooster has hit the nail right on the head so to speak. Yes a bog standard car battery charger will eventually **** up a 12v 7Ah battery. You will be able to get away with it a few times but evenually the battery will start to take the shape of a rugby ball Due to the fact the car battery charger is pumping out too much Ah.

 

Should be looking at 500mA charger for 12v 7Ah batteries

 

I have a 24v 1Ah charger but I charge two batteries at a time. Trickle charge is better long term

 

500mA battery chargers are about £13- I think- never bought one

 

Jonno

[Catamong]

OK guys, thanks for the advice - my car battery will only run my whirly for about 4 hours, so I'm currently getting the worst of both worlds - poor performance from a heavy piece of kit