grumpy the 7th Posted February 11, 2011 Share Posted February 11, 2011 I'm thinking of either a PVR25 or Red Top 15 (both similar price) WILL my Optimate 3 be any use on these gel batteries? What do you use to trickle charge these batteries over winter to stop them discharging on the immobiliser? Could I just disconnect the battery and trickle charge with a recommended charger? What do you people use/do to keep them charged? edited to get the battery type correct 😳 Edited by - roger heeley on 11 Feb 2011 15:11:24 Link to comment Share on other sites More sharing options...
myothercarsa2cv Posted February 11, 2011 Share Posted February 11, 2011 I thought they were sealed, not gel? Link to comment Share on other sites More sharing options...
David Lynch Posted February 11, 2011 Share Posted February 11, 2011 Odyssey in mine now (Equivalent of Redtop 25, killed Redtop 20 through deep discharge, IMHO a 15 is too small). Been great because of an Optimate 3 (started on button after 2 months lay up). Call Dave K at Tweeks for a discounted price and a nice aluminium Varley battery tray. I currently have mine connected with the Optimate flying lead which involves lifting bonnet. Got a fused 12v socket to install which will make that unnecessary (and also mean I see when it's still connected before reversing out of the garage ). Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted February 11, 2011 Support Team Share Posted February 11, 2011 I've been using an Optimate on my Redtop 25 for years and it's kept it in fine condition. Odyssey/Redtop/etc. are "absorbed acid" batteries where the acid is absorbed into fine glass mats. That's why you can mount them in any oirentation, send them through the post and not spill acid everywhere if the case gets cracked. Link to comment Share on other sites More sharing options...
CageyH Posted February 11, 2011 Share Posted February 11, 2011 To charge thge battery, Enersys recommend a charge current of 0.4 of the 10hr rate. This works out as 6.4 amps, so ideally, you need a C-Tek XS7000 in order to maintain and charge the battery. Many people how used the Optimate with success, but if the battery discharges, you may shorten the life if you don't charge it properly. See here for recommended chargers, and here for the charging instructions. Link to comment Share on other sites More sharing options...
Pete-B Posted February 11, 2011 Share Posted February 11, 2011 Been using the optimate on my PVR 25 all winter and all seems fine. Rightly or wrongly I charge it to full then leave for about three or four weeks to run down a bit by the imobiliser then recharge. Link to comment Share on other sites More sharing options...
David Lynch Posted February 11, 2011 Share Posted February 11, 2011 Forgot to say, No matter how hard a failed Alternator regulator tries they will not blow up. They smell of Sulphur and bow out like a football but God bless Hawker Aerospace battery designs 😳 Link to comment Share on other sites More sharing options...
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