A simple series of tests for your rectifier

Flip · 14-08-2020, 04:58 PM

Quote:

Originally Posted by spuggy

As you appear to have a corporate A/C with those guys (required to open an account/ask web-form questions - understandable given they're 100% OEM/zero retail), would you be in a position to ask for specific datasheets? Or technical questions?[/LIST]

Oh you can ask them what you like via the web form - they just don’t like giving you an answer.

Here’s their response when I asked this:

“Can you please tell me the difference between the FH012AA and the FH020AA which replaced it?“

Fm.Shindengen

Thank you very much for inquiry through our company website.
We are very pleased to answer to your demand.

Our car electric components are customized product for the Motorcycle Manufacturer.
We deeply apologize but due to a trade agreement with the Motorcycle Manufacturer, we are prohibited to sales and disclose any information of our products to customer directly.

We apologize for this inconvenience but please contact with the official sales store of the Motorcycle Manufacturer.

spuggy · 14-08-2020, 10:09 PM

Quote:

Originally Posted by Flip

We deeply apologize but due to a trade agreement with the Motorcycle Manufacturer, we are prohibited to sales and disclose any information of our products to customer directly.

We apologize for this inconvenience but please contact with the official sales store of the Motorcycle Manufacturer.

That is hilarious, it's just a pity that it is also obstructive and totally unhelpful...

adie851 · 15-05-2023, 06:32 PM

Question for you gents....a mate of mine had a MOTOBATT AGM on his bike...told me his bike wouldn't start...took a Lithium with me ( higher CCA ) just to prove battery is probably flat.....he said when trying to start it was just chattering ie rattling the starter sprag..thus insufficient current to spin it over.....the MOTOBATT showing over 12volts but not enough current to spin over the bike....once an AGM battery is flat....ie this one hadn't been charged for months and it was an old battery.....are they beyond being recovered back to a fully charged state.....I've had both good and bad experiences with MOTOBATT over the years....Incidentally , the Lithium fired the bike up straight away...Look forward to your replies.Thanks.

adie851

Luddite · 15-05-2023, 06:58 PM

It's generally accepted that AGM batteries shouldn't be discharged by more than 50%, (which equates to 11.95v). If left heavily discharged for a long period, it may be impossible to recharge it fully. There are 'hacks' you can try to recover it, for example charging it in parallel with another, healthy, AGM battery. But, if you've any doubts about the battery's health, you're probably better off just replacing it.

15-05-2023, 06:32 PM	#3
adie851 Member Join Date: Jan 2015 Bike: S4r Posts: 104	Question for you gents....a mate of mine had a MOTOBATT AGM on his bike...told me his bike wouldn't start...took a Lithium with me ( higher CCA ) just to prove battery is probably flat.....he said when trying to start it was just chattering ie rattling the starter sprag..thus insufficient current to spin it over.....the MOTOBATT showing over 12volts but not enough current to spin over the bike....once an AGM battery is flat....ie this one hadn't been charged for months and it was an old battery.....are they beyond being recovered back to a fully charged state.....I've had both good and bad experiences with MOTOBATT over the years....Incidentally , the Lithium fired the bike up straight away...Look forward to your replies.Thanks. adie851

15-05-2023, 06:58 PM	#4
Luddite Registered User Join Date: Aug 2011 Location: Southampton Bike: M1100evo Posts: 2,465	It's generally accepted that AGM batteries shouldn't be discharged by more than 50%, (which equates to 11.95v). If left heavily discharged for a long period, it may be impossible to recharge it fully. There are 'hacks' you can try to recover it, for example charging it in parallel with another, healthy, AGM battery. But, if you've any doubts about the battery's health, you're probably better off just replacing it.