IS IT TIME TO CHANGE THE BATTERY ????
Discussion
Same as you with my Griff.
Still had the original battery on from new(built in 2001), but always kept on accurate when not in use and never let me down. I did however put a new battery on at last years service, even though it still seemed to be ok.
Didn't want to be away somewhere and then it decided not to play ball. I believe that when they do go, they can go fairly quickly. So it lasted 11 years and was still going strong, but decided to change it anyway.
Still had the original battery on from new(built in 2001), but always kept on accurate when not in use and never let me down. I did however put a new battery on at last years service, even though it still seemed to be ok.
Didn't want to be away somewhere and then it decided not to play ball. I believe that when they do go, they can go fairly quickly. So it lasted 11 years and was still going strong, but decided to change it anyway.
I just put a new battery on my 7 year old convertible.... But the problem was my alternator was wrecked... windings burnt out . So my bill was £372
.... One possible cause is that I keep it on an Accumate and that puts a constant current across the alternator even when the ignition is off !!! Well that's what I'm told... I don't understand why having it on Accumate is any different from the current from the battery. 


Edited by glow worm on Thursday 14th February 20:34
I've heard this said about trickle charging before and I'm not sure I buy it totally.
I agree with what someone said about propping up a duff battery. A duff battery is like a capacitor with a permanent load resistor discharging it all the time. So when you put a trickle charger on, it's the charger that supplies the leakage current. Charger taken away, you still have the duff battery.
Having the duff battery will always result in a slightly larger initial dc charging current, which means the rectifier part of the alternator (if separate) will have a regular higher current flowing through it esp at start up. This could put more heat stress on both the windings (the ac bit) and the rectifier (the dc bit) of the alternator, true.
But if the engine is not running, I don't see how the alternator/rectifier can get gubbed by a trickle charger. The only thing that could be happening is that there's reverse leakage back through the rectifier diodes and I don't see how that's a big deal.
Someone like Ferret from Ferret's Electrickery could no doubt tell us the whole story.
J
I agree with what someone said about propping up a duff battery. A duff battery is like a capacitor with a permanent load resistor discharging it all the time. So when you put a trickle charger on, it's the charger that supplies the leakage current. Charger taken away, you still have the duff battery.
Having the duff battery will always result in a slightly larger initial dc charging current, which means the rectifier part of the alternator (if separate) will have a regular higher current flowing through it esp at start up. This could put more heat stress on both the windings (the ac bit) and the rectifier (the dc bit) of the alternator, true.
But if the engine is not running, I don't see how the alternator/rectifier can get gubbed by a trickle charger. The only thing that could be happening is that there's reverse leakage back through the rectifier diodes and I don't see how that's a big deal.
Someone like Ferret from Ferret's Electrickery could no doubt tell us the whole story.
J
Gassing Station | Tuscan | Top of Page | What's New | My Stuff