Brian UK
GT Reference
New product partially, but above all price at the moment I would think.Mike.C said:I have been wondering why these types of batteries are not so common as an aftermarket addon, are we missing something?
Add to that the fact that they are vulnerable to being totalled by discharging them a little too much, and you could end up doubling the cost.
Now I admit I haven't dealt with these batteries. But when the capacity is specified at say 7.5AH, at what discharge rate is that? Battery capacity has always been in AH, but the rate is also normally specified, ie. at a 10 hour or 20 hour rate. The capacity is not normally linear, the higher the discharge current, the smaller the capacity.
I have an Oddysey AGM battery on the SPIII. This has a mechanical electric clock which takes about 20ma constantly. If I leave that battery connected to the bike for more than 3 weeks, I can't start it. Leave it disconnected for several months and there is no problem. The Oddysey is 18AH, so how long would a 5AH one last?
The original Yuasa on the Norge has to be recharged within the month too, or I get a no start situation, though I haven't tried leaving that disconnected to check how it fares under those circumstances. No alarm fitted either.
Small discharge currents do add up considerably over time, certainly an alarm will equal that clock, and don't forget that the alarm will not be disconnected by the ECU if the battery volts drop. The ECU will prevent starting, but the damage to the battery may already be done.
But at the end of the day, as we say here, "You pays your money and you makes your choice".
I just feel that it should be a fully informed choice.