Pendennis Posted November 23, 2014 Share Posted November 23, 2014 Looking for yet another new battery, I seem to struggle to get a year out the Red top 15, the last two leak when laid on their side.Can anyone offer a decent alternative? Link to comment Share on other sites More sharing options...
Mankee Posted November 24, 2014 Share Posted November 24, 2014 Hi Ian. I've just slapped one of these on my car to shed another 5+kgs:http://www.allbatteries.co.uk/motorcycle-battery-lithium-ytx14-bs-12v-14ah-hjx14-mot156.htmlI've not properly tested it out though. It starts the car fine, charges fine and doesn't seem to lose charge, but I've only had it a few weeks. They are supposed to lose next to nothing if left with no parasitic drain, so I'm going to see how I get on without an expensive dedicated charger. But at £85, you could probably put a new one on each year anyway! Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 24, 2014 Member Share Posted November 24, 2014 Very happy with my Powervamp PVR25. It lives on a conditioning charger all the time the 7 is in the garage.Discussion of the PVR22. I made a fruitless attempt to develop a Bulk Buy.Jonathan Link to comment Share on other sites More sharing options...
Pendennis Posted November 24, 2014 Author Share Posted November 24, 2014 Wow Makee, 1.2kg!Jonathan, where did you buy your Powervamp? Link to comment Share on other sites More sharing options...
Mankee Posted November 24, 2014 Share Posted November 24, 2014 I weighed it at 902g! Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 24, 2014 Member Share Posted November 24, 2014 ... where did you buy your Powervamp?At a parts shop in Aylesbury: I needed it the same day rather than at the lowest price! I found them through the Powervamp web site, but IIRC there was a dance about what was Odyssey and what was Powervamp. But the discussion about the PVR22 was triggered by their eBay shop.Jonathan Link to comment Share on other sites More sharing options...
Pendennis Posted November 24, 2014 Author Share Posted November 24, 2014 Thanks guys.Karting batteries have become very light, those Lithium ion type must be the same family. Very interesting, is the cranking power good enough for a high compression 2L though??? Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 24, 2014 Member Share Posted November 24, 2014 Yes, do they give a nominal cranking current, and what do they say about ambient temperature?It seems unlikely at that price, but does it have a built-in management system?ThanksJonathan Link to comment Share on other sites More sharing options...
Mankee Posted November 24, 2014 Share Posted November 24, 2014 What's the CCA of the original Banner as well as Powervamp, Odyssey et al.? From memory, that Skyrich is 250-280 CCA. No idea how that compares, but it'll be interesting to see if it'll still start after the winter.Built-in battery management system?! It's got a test button and three LEDs to tell you the state of the battery, if that's what you mean! Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 24, 2014 Member Share Posted November 24, 2014 Thanks.The manufacturer's claim for the PVR25 is: 1800 peak amps 680 amps cranking current for 5 seconds 220 amps CCA 30 seconds to 7.2v @ - 18c Jonathan Link to comment Share on other sites More sharing options...
Pendennis Posted November 24, 2014 Author Share Posted November 24, 2014 Varley website is not specific at all regarding cranking for the Red top 15, suspect it's about 220.They now do lithium battery Li-5 which looks another good option, but suspect I need a mortgage to buy one Link to comment Share on other sites More sharing options...
7 wonders of the world Posted November 25, 2014 Share Posted November 25, 2014 Ian, you can deal direct with Ed Roller @ Powervamp who offers a decent club discount on the battery and mount bracket too, if I new where the deals section was on this new site I try and do a linky......... Link to comment Share on other sites More sharing options...
Dr Slotter Posted November 25, 2014 Share Posted November 25, 2014 Membership -> Special Offers for Members Link to comment Share on other sites More sharing options...
Support Team Shaun_E Posted November 25, 2014 Support Team Share Posted November 25, 2014 Or just click this large button on the home page:Here's the link:/membership/special-offers-members/powervamp-racing Link to comment Share on other sites More sharing options...
Mankee Posted November 25, 2014 Share Posted November 25, 2014 Just a thought, Ian. Does it have to be a racy/trick/expensive/overpriced lightweight battery? If not, I've been using a Yuasa (Ultramax/RMD25-alike) for the past few years with no issues, even when I completely flattened it as my alternator packed up one day. It's about 5.7kgs, you can fit it in any orientation and about £40 from memory. I have my old one kicking around somewhere, so I can launch it in the post if you want to try it out. Link to comment Share on other sites More sharing options...
Rob Walker Posted November 25, 2014 Share Posted November 25, 2014 Ian, Ed roller /PowerVamp recomended a Jet Ski battery for my 7. It was a Hawker Odessey PC865 or 685 IIRC he said it was just as rugidly built but does not have the racey red colour scheme and half the price of the race battery , lasted 6 years then I sold the car with it still going strong. Link to comment Share on other sites More sharing options...
Member Jonathan Kay Posted November 25, 2014 Member Share Posted November 25, 2014 I have never been able to understand the branding strategy between "Powervamp", "Odyssey" and "Hawker". There is now a "Clubsport" page of products devoted to the PVR22 and a "Racing" page.The PVR22 stil looks like a good cheap option for most 7s. (There was very little interest in a Bulk Buy.)Jonathan Link to comment Share on other sites More sharing options...
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