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750 Battery
McCabe-Thiele (Ted):
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.
K2-K6:
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.
Johnny4428:
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.
Laverdaroo:
--- Quote from: McCabe-Thiele (Ted) 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.
--- End quote ---
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
SteveD CB500K0:
Still a banned word on this forum Roo...
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