bagup-sam Posted July 12, 2010 Report Share Posted July 12, 2010 what battery is best for about 6 hours or more for the magnet? and what would do the same for the flapper. currently im running a 12v 7Ah for the magnet and a 12v 1.2Ah for the flapper, both of which are knackered! any ideas? Quote Link to comment Share on other sites More sharing options...
RAMMER BURT Posted July 12, 2010 Report Share Posted July 12, 2010 you need a 12v 17ah for the magnet this will last most of the day and it's not to heavy to carry Quote Link to comment Share on other sites More sharing options...
webber Posted July 12, 2010 Report Share Posted July 12, 2010 Better with two 7Ah. Carry one, leave one in the car to change if needs be. A 17Ah is a bit of a lump to lug around, but is doable. The 7Ah. weighs 2.65 Kgs. The 17Ah. weighs 6.1 Kgs. webber Quote Link to comment Share on other sites More sharing options...
Highlander Posted July 12, 2010 Report Share Posted July 12, 2010 I find fully charged 17/18ah batteries will last (almost) all day depending on how long 'all day' is! Webber don't be such a wimp, heavy indeed! Quote Link to comment Share on other sites More sharing options...
wymberley Posted July 12, 2010 Report Share Posted July 12, 2010 Hi, If you don't know how and/or haven't got the meter, get a sparky mate to find out what amps your kit is pulling. Once you know this you can buy the battery size that suits your particular needs. It doesn't take a mo to do. Cheers Quote Link to comment Share on other sites More sharing options...
webber Posted July 12, 2010 Report Share Posted July 12, 2010 Dear Highlander The heaviest battery that I now carry is a 1.2Ah for my flapper. But I do usually have the luxury of having McF in tow, who carries the whizzer and battery (17Ah). He has moaned about the weight of the battery since the day it was first tried out. Given that he once worked down the pit, thats saying something. The 17Ah battery was obtained well before I had any interest in a battery business; when either the battery or McF packs in ( which ever happens first), the battery will be replaced with a 7Ah. McF is looking prety fit at the moment, so I doubt that he will require replacement. webber Quote Link to comment Share on other sites More sharing options...
Highlander Posted July 12, 2010 Report Share Posted July 12, 2010 must be nice to have a batman! Quote Link to comment Share on other sites More sharing options...
activeviii Posted July 12, 2010 Report Share Posted July 12, 2010 it depends on the magnet your using, the length of the wires from mag to battery and if your using a speed controller My pinewood will last 7 hours on a 7amp with dead birds but as i start with flappers on it then i get 8 or 9 hours. If im using dead birds from start then i will take the 17 amp and get a full 12 hours with no problems. the smaller battery i buy from toolstation as there as cheap as chips. Phil. Quote Link to comment Share on other sites More sharing options...
jimdfish Posted July 13, 2010 Report Share Posted July 13, 2010 can i safely use an 8 amp charger on a 7a battery or do i need to trickle feed? jim Quote Link to comment Share on other sites More sharing options...
webber Posted July 13, 2010 Report Share Posted July 13, 2010 can i safely use an 8 amp charger on a 7a battery or do i need to trickle feed?jim Absolutly NO webber Quote Link to comment Share on other sites More sharing options...
jimdfish Posted July 13, 2010 Report Share Posted July 13, 2010 aaahh-ha. that would explain it. i have put my spare on trickle feed now. jim Quote Link to comment Share on other sites More sharing options...
swiss.tony Posted July 15, 2010 Report Share Posted July 15, 2010 Now we can drive in feilds I can use my 85 amp leisure battary Last s for weeks but only carry it for 15 ft lol Quote Link to comment Share on other sites More sharing options...
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