Tinribz Posted January 25, 2015 Report Share Posted January 25, 2015 Ive just bought a pair of turbo flappers with 1.2 amp batterys can anyone recomend how long to charge them. I leave my 7.0 amp magnet batterys on for 12 hours but not sure about these smaller ones and also i see on youtube these are ment to last the day mine were flat after 3 hrs is it worth upgrading the batterys to a bigger ampage ? Cheers guys Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted January 25, 2015 Report Share Posted January 25, 2015 I use a 12v 7amp hr battery. When not in use, my batteries are left on a trickle charger . These keep the batteries in tip top condition, and cost very little to run. PM sent with link. Quote Link to comment Share on other sites More sharing options...
redshrimp Posted January 25, 2015 Report Share Posted January 25, 2015 I charge mine for 2 hrs and they last all day with an intermittent timer. A charger which shows fully charged would be a great help.Unfortunately i haven't got one. Quote Link to comment Share on other sites More sharing options...
Cosd Posted January 25, 2015 Report Share Posted January 25, 2015 (edited) To work out how long they will take to charge, you need to look at how any Mah or amps your charger is. If it's say 600Mah, then your 1.2amp battery will take two hours to charge; if it's 400Mah then it will take three hours to charge. Edited January 25, 2015 by Cosd Quote Link to comment Share on other sites More sharing options...
Tinribz Posted January 25, 2015 Author Report Share Posted January 25, 2015 Its says 12 v 350 ma Mines the same shrimp Cheers cosd i got ya Quote Link to comment Share on other sites More sharing options...
Tinribz Posted January 25, 2015 Author Report Share Posted January 25, 2015 So a 7amp battery will take 21 hours i needed both my 7 amp batterys today just didnt have no umph ive not been charging them for long enough Cheers cosd thats why i like pw its a mine of information for a newbie 👍 Quote Link to comment Share on other sites More sharing options...
Cosd Posted January 25, 2015 Report Share Posted January 25, 2015 You're welcome. Not sure I agree with a previous poster saying to leave them on trickle!! Though your charger is fine, I prefer a charger around 600 - 800 Mah, that way if I'm shooting two days in a row I can charge my battery overnight and ready for next day. If you do this often and you need more than one battery a second charger is needed. Quote Link to comment Share on other sites More sharing options...
Tinribz Posted January 25, 2015 Author Report Share Posted January 25, 2015 I now have 2 7amp and 2 1.2 amp i think the charger will be running full time im shooting wednesday saturday wednesday and saturday lol cheers mate i thought my batterys had gone dead its just i wasnt charging them long enough Quote Link to comment Share on other sites More sharing options...
cpaulc Posted January 25, 2015 Report Share Posted January 25, 2015 I use a 12v 7amp hr battery. When not in use, my batteries are left on a trickle charger . These keep the batteries in tip top condition, ... PM sent with link. Steve-b do you charge the battery back up with a standard charger first? Or just straight onto the trickle charger? Thanks Cpaulc Quote Link to comment Share on other sites More sharing options...
steve_b_wales Posted January 25, 2015 Report Share Posted January 25, 2015 Steve-b do you charge the battery back up with a standard charger first? Or just straight onto the trickle charger? Thanks Cpaulc I use a 12v/6v charger that I bought in Lidl last year. It's charges the batteries slowly (which is the main reason that so many batteries fail after a certain time) and then I connect them to the trickle chargers. Depending how much power I have used when out lamping, and when I am going to use the battery again, I just put it straight onto the trickle charger. Here's a link: http://www.lidl-service.com/static/2844174/52513_GB.pdf Quote Link to comment Share on other sites More sharing options...
fenboy Posted January 25, 2015 Report Share Posted January 25, 2015 You're welcome. Not sure I agree with a previous poster saying to leave them on trickle!! Though your charger is fine, I prefer a charger around 600 - 800 Mah, that way if I'm shooting two days in a row I can charge my battery overnight and ready for next day. If you do this often and you need more than one battery a second charger is needed. General advice is to charge at no more than 1/4 of the batterys capacity , so for a 1.2 amp / hr 300 Mah is perfect but a 6-or 800 Mah is likely to damage it . All sealed lead acid batterys benefit from being left on charge , but you need the correct intelligent charger , I have three on charge 365 days of the year Quote Link to comment Share on other sites More sharing options...
Tinribz Posted January 26, 2015 Author Report Share Posted January 26, 2015 After cosd,s coments i now have a small charging station on my landing i think im going to need a 6-700 charger for my 7 amp batterys as i wont have enough time to charge them all off the 350 Quote Link to comment Share on other sites More sharing options...
Cosd Posted January 26, 2015 Report Share Posted January 26, 2015 General advice is to charge at no more than 1/4 of the batterys capacity , so for a 1.2 amp / hr 300 Mah is perfect but a 6-or 800 Mah is likely to damage it . All sealed lead acid batterys benefit from being left on charge , but you need the correct intelligent charger , I have three on charge 365 days of the year Cheers Fenboy. I was on the phone and typing bare minimum I should have been more specific. The 600-800 charger I mentioned was for his larger batteries which he stated would take 21hrs. And an intellichRger actually stops charging when battery is charged, so isn't in fact charging continuously I thought? Cos Quote Link to comment Share on other sites More sharing options...
wymberley Posted January 26, 2015 Report Share Posted January 26, 2015 These type of batteries have a 'memory' (so I'm told - don't pretend to understand it) and to avoid this kicking in it pays to fully discharge/recharge every so often. Perhaps some bright sparky can explain better than I. Quote Link to comment Share on other sites More sharing options...
fenboy Posted January 26, 2015 Report Share Posted January 26, 2015 Cheers Fenboy. I was on the phone and typing bare minimum I should have been more specific. The 600-800 charger I mentioned was for his larger batteries which he stated would take 21hrs. And an intellichRger actually stops charging when battery is charged, so isn't in fact charging continuously I thought? Cos Correct , it comes on and off as the battery needs it , a trickle charger is on all the time and can also kill the battery if it is charging at too high a rate , of course the intelligent chargers are also cheaper to run as they are only using power when its needed. Quote Link to comment Share on other sites More sharing options...
bazzashadow Posted January 26, 2015 Report Share Posted January 26, 2015 i have one of these on my bike and my rotary battery http://www.ebay.co.uk/itm/4-Watt-12v-Volt-Solar-Panel-Trickle-Car-Battery-Charger-Boat-/121191944934 if my bike is not on this for 2 weeks it will not start, but left on this and it starts first time every time and the battery is three years old rotary lasts 3-4 hours as well Quote Link to comment Share on other sites More sharing options...
superspark Posted January 27, 2015 Report Share Posted January 27, 2015 I use a 12v smart charger designed for motorbike batteries 6v and 12v. Charger turns off once it has detected the battery is fully charged. Always store them fully charged when not in use Quote Link to comment Share on other sites More sharing options...
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