Author Topic: C12 replacement battery.  (Read 553 times)

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Online hampshirebiker

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C12 replacement battery.
« on: June 06, 2019, 03:03:19 pm »
I thought I would make a start by charging the bike batteries. Mixed results so far, but one of the C12s is dead. It's a small lead acid battery in a gouged out original Lucas battery. I've also got one of those fibreglass imitation batteries with a bit more room inside. I reckon it will take a battery of 110x80x140 high. The bike's on 12v BTW.
I'd like a gel battery, but Ebay is a minefield and some of the prices are frightening. I'm sure someone's been down this route already so suggestions appreciated. Thanks in advance, Dave.
Postal - Liphook Hants - But just into West Sussex.

Offline Brillandy

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Re: C12 replacement battery.
« Reply #1 on: June 06, 2019, 06:54:11 pm »
I use a 6V 2.5A Cyclon battery on my C10L which has proved to be very good, and it's possible to fit two side by side in a dummy battery case for 12V

I can't remember where I got it from but a quick look on the interweb came up with this: https://www.countybattery.co.uk/industrial/cyclon-cells/hawker-cyclon-d-6v-25-ah-battery-0812-0012?msclkid=394966c96bd1163e85093a303b2ca8a3&utm_source=bing&utm_medium=cpc&utm_campaign=Shopping%20-%20Industrial%20%5BShopping%5D%20MM&utm_term=4574999164579035&utm_content=PL%20-%20Enersys%20MM
which seems a good price.

Andy
56 C10L
81 V50
60 Nuffield DM4

Online timsdad

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Re: C12 replacement battery.
« Reply #2 on: June 07, 2019, 06:46:08 am »
I had one of those Cyclon batteries on my Real C12 but it was a mightier one - 6 volt, 8 amp. I need another one because I fitted it to my Cub when I put it back on the road before selling it. It fitted nicely into a fibre glass battery box and held its charge indefinitely if I just pulled the fuse to disconnect it when standing the bike up for more than a few days.

I also had one on my B31 for several years before fitting that to another bike before selling it so can vouch for their reliability and fit for use. These were all dynamo bikes but I can see no reason why they won't function well on an alternator system because I've got a Screwfix glass-fibre-mat, sealed-up battery on my Thunderbird that's had almost daily use for several years and it's still in excellent condition.

I found an old 8 amp Cyclon three-cylinder battery recently when I was clearing out a shed so I'll measure the dimensions later, hb. I was going to take it into Multicell in Norwich to see if they stock them. They kept just about everything there in the battery line but don't keep many six volt ones nowadays.


Ray
Just a motorcyclist.

Online hampshirebiker

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Re: C12 replacement battery.
« Reply #3 on: June 07, 2019, 09:29:58 am »
https://www.ebay.co.uk/itm/RITAR-RT645-Rechargeable-BATTERY-LEAD-ACID-AGM-6V-4-5AH-4ah-LP6-4-0-NP4-6/152851836372?epid=6030026318&hash=item2396adedd4:g:F9YAAOSwUn9aTNS8&frcectupt=true
I've bought two of these off Fleabay. Not gel, but suits my purpose. Thanks for your input.
Not bad after a year standing. Three batteries fine and one knackered.
« Last Edit: June 07, 2019, 10:00:29 am by hampshirebiker »
Postal - Liphook Hants - But just into West Sussex.

Online Owen

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Re: C12 replacement battery.
« Reply #4 on: June 07, 2019, 10:09:07 am »
Trouble with some of those cheap SLA/AGM batteries is they don't like irregular charging/discharging and they tend to loose their capacity quite quickly (12m or so). Where as more branded e.g Panasonic, Yuasa tend to be more robust and obviously more cost. I've had cyclone for 7+ years and still good capacity.
1940 C12 (350cc)
1945 C10 & C11
1953 C10 & C11

Online hampshirebiker

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Re: C12 replacement battery.
« Reply #5 on: June 07, 2019, 10:59:04 am »
Thanks Owen, but at nine quid (incl. postage) each I'll take a chance.

I also owe Andy an apology. I didn't think two of his batteries would fit in my box, but they will.
Dave Hookey, specialist subject - the bleedin' obvious.
« Last Edit: June 07, 2019, 11:15:30 am by hampshirebiker »
Postal - Liphook Hants - But just into West Sussex.

Online camman3

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Re: C12 replacement battery.
« Reply #6 on: June 07, 2019, 12:14:08 pm »
They will last ok but more likely too if you leave on a smart charger if left over long period, especially over winter in a cold garage, but, they do also need a smoother more regulated charge supply when on bike to survive than cyclones, as discussed before.

Graham
1957 C12
In sunny (sometimes) Christchurch, Dorset, UK

Online hampshirebiker

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Re: C12 replacement battery.
« Reply #7 on: June 10, 2019, 11:54:02 am »
They've just arrived. In a single package that resembled a large haggis. I'm half way through fighting the packaging; which is a cocktail of cling film and fine bubble wrap. Having got myself into a muck sweat, I'm relaxing at half time. This has to be the wrapping of the century.
Postal - Liphook Hants - But just into West Sussex.