Tikkat3x Posted July 14, 2020 Report Share Posted July 14, 2020 Can the 12v 12ah batteries for flappers be charged with a standard 12/24v battery chargers that are used to charge car batteries? many thanks Quote Link to comment Share on other sites More sharing options...
snow white Posted July 14, 2020 Report Share Posted July 14, 2020 I charge mine with one Quote Link to comment Share on other sites More sharing options...
Stimo22 Posted July 15, 2020 Report Share Posted July 15, 2020 I have 10 battery’s for feeders and use a trickle charger for them. Just leave them for several days to recharge Quote Link to comment Share on other sites More sharing options...
Stephen-H Posted July 15, 2020 Report Share Posted July 15, 2020 I've got the same battery & have just bought a 12volt 1.5ah trickle charger from screwfix it does the job Quote Link to comment Share on other sites More sharing options...
Newkid Posted July 15, 2020 Report Share Posted July 15, 2020 https://www.ebay.co.uk/itm/202799721184 I use one of these does the job 👍 Quote Link to comment Share on other sites More sharing options...
chip000 Posted July 28, 2020 Report Share Posted July 28, 2020 I have two 12v 12ah motorcycle batteries that I alternate trickle charging. Works well for 4 or so hrs each on a magnet or all day on an ff6 flapper. Quote Link to comment Share on other sites More sharing options...
Westley Posted July 28, 2020 Report Share Posted July 28, 2020 I would suggest a trickle charger. I knackered 2 leisure batteries used for clay traps by using a car charger, they only lasted 2 months. The replacements are still going strong after buying a charger intended for leisure batteries. Quote Link to comment Share on other sites More sharing options...
Diver One Posted July 28, 2020 Report Share Posted July 28, 2020 I dug this out for somebody a couple of years ago, but kept it in my notes n case it was needed again SLA Battery charging Do NOT use a car battery charger to charge sealed lead-acid batteries. SLA batteries require very precise three-stage charging in various constant current and constant voltage modes. Car battery chargers generally output very unregulated and imprecise voltages and will significantly shorten the life of a SLA battery. (Of course, if the car charger is a switched-mode unit designed to charge SLA batteries, you'll be fine). You might be OK to do it once, but certainly don't do it regularly. If you have a current limited lab power supply, you can charge the battery from that. With the power supply disconnected from the battery, set the PSU to 14.6V and 2A. Apply to battery. When the current has fallen to 100mA, set the power supply to 13.8V. When the current has further fallen to about 20mA, set the PSU to 13.2V and leave connected for as long as you like. There are normally specific values for voltages and currents in the datasheet for the battery, but these generic values often work well. Quote Link to comment Share on other sites More sharing options...
Stonepark Posted July 28, 2020 Report Share Posted July 28, 2020 (edited) Any 12v charger with a motorbike setting (12v <1ah) will do the job. I use the Aldi/lidl one. The expensive version is the CTEK XS 0.8 Edited July 28, 2020 by Stonepark Quote Link to comment Share on other sites More sharing options...
Stephen-H Posted July 29, 2020 Report Share Posted July 29, 2020 Screwfix £17.99 I think it was 1.5ah trickle charger Quote Link to comment Share on other sites More sharing options...
minibbb Posted July 29, 2020 Report Share Posted July 29, 2020 I've got a silver line 12v 500ah trickle charger which was a tenner or so. Is this suitable for a 12v 12a battery? If so how long would it take to charge please? Doesn't have an led indicator or anything so I wouldn't want to over charge it. Many thanks Quote Link to comment Share on other sites More sharing options...
wigeon jim Posted August 2, 2020 Report Share Posted August 2, 2020 Aldi one for me ,does the job on motor bike setting , Jim. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.