Author Topic: 750 Battery  (Read 1448 times)

Offline Moorey

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750 Battery
« on: February 14, 2023, 07:38:45 PM »
 
   Well my 750F battery has given up the ghost, nothing lasts these days but I was warned. When I bought the bike nearly 8 years ago the seller did
   say " You might need to get a new battery soon." after I had bought the bike. Replaced with like for like Yuasa YB14-A2 Good old lead acid. It's a
   pity there is no date on the old one to say how long it lasted.
   Ordered Sunday night delivered Tues morning very well packed .Tanya batteries £60

Offline Johnny4428

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Re: 750 Battery
« Reply #1 on: February 15, 2023, 11:11:35 AM »
Got a battery for the car from them, £75 delivered to Orkney islands. Local factors wanted £175. Interesting to know how long that battery lasted indeed.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1. Running resto,
1978 Honda CB550K3.
1999 ST1100 Pan European 50th Anniversary.
1975,1980,1984,1986 Honda C90’s
1973 Honda CB750K3

Online McCabe-Thiele (Ted)

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Re: 750 Battery
« Reply #2 on: February 15, 2023, 11:48:41 AM »
I have been using Yuasa since 2008 I rate them very highly.

My longest ever lasting battery was an unsealed  lead/acid battery that was fitted to one of our vehicles when we bought it & failed in our 10th year of ownership.
It was manufactured by a Greater London firm who supplied to motor factors down south - I did not keep a record of the make.
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Spitfire

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Re: 750 Battery
« Reply #3 on: February 15, 2023, 05:13:23 PM »
Renewed the battery on my 750 F1 last year, it was new in 2008, replaced it with the usual Yuasa one.

Cheers

Dennis
1976 CB750F

1977 CB750F2 In bits

1964 BSA A65R In bits

Offline royhall

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Re: 750 Battery
« Reply #4 on: February 15, 2023, 06:13:04 PM »
I have found that AGM batteries give much better performance but die very quickly, almost instantly in the case of my 350F. Now that would be a bugger if it happened out on the road.
Current bikes:
TriBsa CCM 350 Twin
Honda CB350F in Candy Bacchus Olive
Honda CB750F2 in Candy Apple Red
Triumph Trident 660 in Black/White
Triumph T100C
Suzuki GS1000HC
Honda CB450K0 Black Bomber
Honda CB750K5 in Planet Blue Metallic (Current Project)

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Re: 750 Battery
« Reply #5 on: February 15, 2023, 07:16:15 PM »
Interesting to read your findings on AGM batteries Roy - my 500 came with a Powerline AGM unit so I will see how it lasts.

I first entered the world of AGM batteries for our Merc in December 2012, the battery from Battery Megastore had a distinctive yellow casing just branded AGM.   
It was working fine until 2020 when I switched the battery with a vehicle I was trading in as it had a much newer Hankook AGM battery both were the type 019 sized case so was still good after 8 years.

I bought into AGM technology as they were recommended to me for little used vehicles as they hold their charge better over time.
I might be wrong but I think AGM was in part a development from Leisure batteries or even a straight rebranding.

I believe a 100% charged AGM battery should read 13.00 volts whereas a 100% charged conventional battery would read 12.73 volts.

The shortest battery life I have recently encountered was a Hankook standard type unit that failed after 4 years 2 months - duly replaced with a standard Yuasa.
Considering the higher initial cost of AGM not sure they are worth the extra money - personal choice I guess.

Never personally owned a Gel battery I think my Yuasa is the silver calcium technology not sure.

Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline K2-K6

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Re: 750 Battery
« Reply #6 on: February 15, 2023, 08:07:40 PM »
AGM has advantage in that the acid doesn't stratify when deep discharge is encountered as it's held more competently around the plates.

If a fully wet type discharges low, it's vulnerable to freezing at the base which can crack the casing or damage the plates and hence give failure that way. It is low risk but present in extremes all the same.

These are good if ultimate performance is needed (don't think they are available for bikes) https://www.tayna.co.uk/car-batteries/optima/8001-287/ spiral wound AGM with all the clout of potency along with longer term deep depletion resistance. There's Exide option there too.

Don't know if anyone recalls an "Exide Torque Starter" was an early spiral wound AGM years ago, very small but potent, would spin an engine for about half an hour all in, amazing little things, but expensive.

The Varta ordinary type supplied by Tayna I've used on many things currently, seem very resistant both bike and car.  Had the cars parked for week at a time at -15 without any loss or start ability.

Offline Johnny4428

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Re: 750 Battery
« Reply #7 on: February 16, 2023, 11:43:30 AM »
I have a few Motobatt batteries, can’t really say they are better than any other, what I will say is the 6 volt one holds a charge better than any other 6 volt lead acids that I have had.
1952 Cymoto on Triumph bicycle.
1961 Matchless G3
1974 Honda CB550K1. Running resto,
1978 Honda CB550K3.
1999 ST1100 Pan European 50th Anniversary.
1975,1980,1984,1986 Honda C90’s
1973 Honda CB750K3

Offline Laverdaroo

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Re: 750 Battery
« Reply #8 on: February 16, 2023, 12:15:20 PM »
I have been using Yuasa since 2008 I rate them very highly.

My longest ever lasting battery was an unsealed  lead/acid battery that was fitted to one of our vehicles when we bought it & failed in our 10th year of ownership.
It was manufactured by a Greater London firm who supplied to motor factors down south - I did not keep a record of the make.


I'll top #@%$ you Ted, I've just received a replacement for the VFR which to date is the oldest I've ever had a battery for. This one was OE fitment when I got the bike in 2003 and has just given up the ghost as I forgot to put it on charge after moving things around  the workshop about 4 weeks ago. Sadly it's dead.

Nothing lasts these days ;D
Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline SteveD CB500K0

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Re: 750 Battery
« Reply #9 on: February 16, 2023, 12:30:49 PM »
Still a banned word on this forum Roo...
2022 Tiger Sport 660
1971 CB500K0

Offline Laverdaroo

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Re: 750 Battery
« Reply #10 on: February 16, 2023, 12:55:02 PM »
Sorry and not being a pain but are you joking? It's a card game and that was the reference not that wig wearing 6 foot Umpa Lumpa. Why is it banned, I'm not sure I understand?
Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline Orcade-Ian

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Re: 750 Battery
« Reply #11 on: February 16, 2023, 12:58:52 PM »
We bought an almost new '55 plate Citroën Blingo Van just after we moved permanently here in 2007.  A few years later I jumped in it to go into town and it was flat - everything dead.  Took Christine's Civic instead and checked the voltage when we got back - 3 volts!!  Charged over night and it started fine, so I went to a nearby garage who still used one of those brutal drop testers with a big shorting resistor.  'Nowt wrong with that one mate' was the comment.  We soldiered on with that battery and eventually sold the van to a friend here in Orkney.  He replaced that battery for the first time during the initial lockdown in April 2020 - 15 years old on a diesel van now with well over 120k on the clock.  It did have mysterious gremlins though - switching on the radio/cd and nothing would happen.  Another day or so later you would go to open the rear doors and the bloody radio would come on!

Ian

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Re: 750 Battery
« Reply #12 on: February 16, 2023, 01:08:20 PM »
Sorry and not being a pain but are you joking? It's a card game and that was the reference not that wig wearing 6 foot Umpa Lumpa. Why is it banned, I'm not sure I understand?

Can I overtrump you Roo ?
Honda CB500 K1 (new pit dug out ready)
Honda CB400 four super sport (first money pit)
Link to my full restoration http://www.sohc.co.uk/index.php/topic,23291.0.html

Offline Laverdaroo

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Re: 750 Battery
« Reply #13 on: February 16, 2023, 01:53:59 PM »
You might have to ask Ted  ;)
Mornings are the invention of the devil!

1977 CB550F (current money pit!!)
2002 VFR800 VTEC (The Beloved)
1977 CB400F (the last money pit!)
1998 Ducati 748\853 conversion(sold :()
1980 ish CB750KZ in a billion bits (need to get rid, anybody want one?))

Offline K2-K6

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Re: 750 Battery
« Reply #14 on: February 16, 2023, 02:16:40 PM »
Trumpton, see you can still go there  ;D

Huw,  pugh, barley magrue, cuthbert, dibble and grub  :D

 

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