Dbw1shrops Posted February 16, 2014 Report Share Posted February 16, 2014 Hi all just recently my charged 12v 7 amp battery's don't seem to last to long ( about 2 hours max ) this is with Hypa flaps ? Any advise for me PW massive ? I'm thinking either the motor is on it's way out or maybe it just needs a good lubing up as I can't recall ever doing it in the last 5 years ? If so how do I go about doing this ? Can I take it apart to grease up,or is it a matter of a spray with some WD 40 Cheers Dave Quote Link to comment Share on other sites More sharing options...
JDog Posted February 16, 2014 Report Share Posted February 16, 2014 With two real birds on my magnet I can generally get four hours at normal speed from a 12 v 7a battery. It sounds as though your magnet could do with a service. Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 16, 2014 Author Report Share Posted February 16, 2014 I forgot to add that is at full speed which I think works best with the Hypa flaps. Never the less it should still last longer than this ? How do I go about giving it a service J Dog ? Dave Quote Link to comment Share on other sites More sharing options...
JDog Posted February 16, 2014 Report Share Posted February 16, 2014 Take it to pieces if you can get access to it, clean the insides and lubricate. If it is a Pinewood one send it to them for a service. Quote Link to comment Share on other sites More sharing options...
webber Posted February 16, 2014 Report Share Posted February 16, 2014 How old is your battery? webber Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 16, 2014 Author Report Share Posted February 16, 2014 I've got 2 one is a couple of months old and the other about a year ? I always charge them when I get back from the field. Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 16, 2014 Author Report Share Posted February 16, 2014 It's not a pinewood one mate it's one I bought from the midland game fair a few years ago possibly from aa decoys but not 100% on that Quote Link to comment Share on other sites More sharing options...
fenboy Posted February 16, 2014 Report Share Posted February 16, 2014 Do leave them on charge ? if not and they are left out in a cold garage etc it can soon kill them . I have "intelligent" chargers on mine so they come on and off as needed . Charging with to high current for capacity will also quickly ruin them . Quote Link to comment Share on other sites More sharing options...
webber Posted February 16, 2014 Report Share Posted February 16, 2014 I've got 2 one is a couple of months old and the other about a year ? I always charge them when I get back from the field. What charger are you using? webber Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 16, 2014 Author Report Share Posted February 16, 2014 No don't leave them on charge but it's a trickle charger anyway so that should be fine ? Most the time I keep them in the house till I'm going ? Lidl car/ bike trickle charger. Quote Link to comment Share on other sites More sharing options...
webber Posted February 16, 2014 Report Share Posted February 16, 2014 No don't leave them on charge but it's a trickle charger anyway so that should be fine ? Most the time I keep them in the house till I'm going ? Lidl car/ bike trickle charger. How many amps is the charger rated at? webber Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 16, 2014 Author Report Share Posted February 16, 2014 Input 220-240v AC 50/60Hz 60W Output 12v DC 0,8/3,8A 6V DC 0.8 A That's what's on the charger not sure wher the instructions are ? Is that any help ? Quote Link to comment Share on other sites More sharing options...
webber Posted February 16, 2014 Report Share Posted February 16, 2014 If you've stuck to the 0.8 Amp setting, fine, but if you've used the 3.8 Amp setting you've cooked the batteries. webber Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 16, 2014 Author Report Share Posted February 16, 2014 You just press the button and it goes to the correct setting Quote Link to comment Share on other sites More sharing options...
Longchalk Posted February 17, 2014 Report Share Posted February 17, 2014 I have a brand new magnet, and on full chat with Hypaflaps I don't get much more than 3 hours ish either .... Buy a 12ah battery instead. They last a lot longer. I paid around £28 for one at Tool Station. Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 17, 2014 Author Report Share Posted February 17, 2014 Was thinking of getting either a 20 or 22ah that should keep me going all day but still want to find out why there draining so quickly Hypa flaps are only light and if I want to put dead birds in I dread to think how long they will last ? Dave Quote Link to comment Share on other sites More sharing options...
ChAoS Posted February 17, 2014 Report Share Posted February 17, 2014 Get hold of a mutli-meter and check how much current it's pulling. If it's drawing 3.5 amps, then the battery's OK. ( 2 x 3.5 = 7...) I've no idea what a typical magnet motor draws. Perhaps someone else can measure theirs. By the way, if these batteries are SLAs (ie, lead-acid gel), then they can be charged on a constant *voltage* source. I sometimes charge my SLAs on a "fancy" (read "expensive") charger or, if that's in use, I just stick them on a bench power supply at either 13.8V (for a 12V battery) or 6.9V (for a 6V one). Lead-acid batteries will self-limit and pull very little current from a PSU when fully charged. Regards, Mark. Quote Link to comment Share on other sites More sharing options...
wymberley Posted February 17, 2014 Report Share Posted February 17, 2014 (edited) Can you get someone with a multimeter to see what amps the motor is pulling? Dividing the 7Ah by that figure will tell you if the battery is performing as advertised - ie if the motor runs for 2 hours then a 3.5 amp ish reading is to be expected. If it's much lower then the battery is suspect; higher then the motor needs looking at if it's previously run for a longer period. Edit : Oh dear, sorry, chAos my slow typing again. Just also add that it pays to fully run these down once in a while. Edited February 17, 2014 by wymberley Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 17, 2014 Author Report Share Posted February 17, 2014 One of the battery's lasts a bit longer than the other so I think it might be the motor but will try and get hold of a multimeter also try and give it a bit of a service thanks Dave Quote Link to comment Share on other sites More sharing options...
TIGHTCHOKE Posted February 17, 2014 Report Share Posted February 17, 2014 One of the battery's lasts a bit longer than the other so I think it might be the motor but will try and get hold of a multimeter also try and give it a bit of a service thanks Dave In that case I would suggest it's your batteries that are on their way out! Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 17, 2014 Author Report Share Posted February 17, 2014 Could be right on that one TC but even then newer one that is about a couple of months old only lasts about 2 hrs ? Quote Link to comment Share on other sites More sharing options...
TIGHTCHOKE Posted February 17, 2014 Report Share Posted February 17, 2014 Cold, age and infrequent or over aggressive charging will take their toll on battery's! Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 18, 2014 Author Report Share Posted February 18, 2014 There's only 1 which is about a year older as for charging I always charge them back up same day I've used them and when there finished the ultimate speed charger (lidl) comes up with a green light and either stops charging or trickle charges them so might invest in another battery and take a look at the magnet. Dave Quote Link to comment Share on other sites More sharing options...
motty Posted February 18, 2014 Report Share Posted February 18, 2014 Was thinking of getting either a 20 or 22ah that should keep me going all day but still want to find out why there draining so quickly Hypa flaps are only light and if I want to put dead birds in I dread to think how long they will last ? Dave I reckon your batteries are getting knackered. This happens, I bought a brand new one that was faulty (20ah) and only lasted 4 hours. I have now replaced my old batteries with two brand new 22ah ones. These will last for as long as I need them to. A tip for using dead birds that were previously shot. Cut off the breasts. This will considerably cut down on weight and therefore put less strain on the motor. Quote Link to comment Share on other sites More sharing options...
Dbw1shrops Posted February 18, 2014 Author Report Share Posted February 18, 2014 Ok thanks for your input Motty mate 👍 was deffo thinking of getting one ! Does anyone know of a good site to buy a 20/22 ah battery I've seen them on the bay for around £35 ish is this the norm ? Cheers Dave Quote Link to comment Share on other sites More sharing options...
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