Overcharging battery (CB400)

[notme]

good to hear :-) oh and clean up any spilled battery acid if you haven't already, or it will eat your bike! Trust me, I knows what I's talking about with batteries!

Put a teaspoon of baking soda in a litre of warm water and use it to clean up the battery area then rinse off and dry the area.

[xwhatsit]

Close, but no cigar. the RR's on bikes aren't quite as simple as that unfortunately. Xile, the best fix for your situation is finding a reg/rect at a wreckers or trademe etc.

He's talking about just replacing the rectifier side (in which case it is that simple, all a rectifier does is flip around the negative side of the AC wave), not the whole regulator/rectifier unit.

[notme]

He's talking about just replacing the rectifier side (in which case it is that simple, all a rectifier does is flip around the negative side of the AC wave), not the whole regulator/rectifier unit.

It'd be an unusual RR unit then! 1. They don't have a seperate rectifier then regulator, and 2. They are one lump of silicon with the RR on it - not discrete devices soldered to a circuit board or anything like that. But in the very unusual case of a discrete component RR unit that also had a rectifier stage followed by a regulator stage, you'd have a bit of a problem opening it as it would be sealed and potted in epoxy. Of course it is possible to build your own unit if you know what you are doing, and you can even improve the design from standard, but returning to the original point of this thread, Xile will be best off getting a second hand plug in RR to solve her problem.

[FROSTY:Me]

original point of this thread, Xile will be best off getting a second hand plug in RR to solve her problem.

Actually she's better off with a NEW accessory reg/rec-Im workin on it for her

[davereid]

My design is fine.

Its a rectifier not a regulator.

I never said it was a regulator.

But you could also build one of those for petty cash.

[notme]

Actually she's better off with a NEW accessory reg/rec-Im workin on it for her

Nice one, Tony. Should have known!

[xwhatsit]

It'd be an unusual RR unit then!.

Golly, you're a tough customer to please! Well aware they're sealed, that's why they're called regulator/rectifiers, innit?

If the rectifier in the reg/rec is borked, then it's just passing the juice through unmodified. So make a new rectifier (like mentioned above) and stick it upstream of the reg/rec and problem is solved.

[notme]

Golly, you're a tough customer to please! Well aware they're sealed, that's why they're called regulator/rectifiers, innit?

If the rectifier in the reg/rec is borked, then it's just passing the juice through unmodified. So make a new rectifier (like mentioned above) and stick it upstream of the reg/rec and problem is solved.

hehehehe, not a tough customer as such, just an engineer. Don't like technical inaccuracies....i guess it goes with the territory!

To try and shed some light on how these things work - it's a sealed complete unit that is a reg and rectifier in one. the reg part controls the rectifier part, and none of the wires that connect the two parts inside the unit are available to the outside world.

so even though what you're saying makes perfect sense, there is no way to connect some wires to the working reg part and connect them to a new rectifier part. that connection is inside the sealed box, thus if either the reg or the rect part fails, you need a new complete unit.

and while I'm nitpicking , they're called regulator/rectifiers because they are a combined reg/rect.....being sealed has nothing to do with the naming....you could have a sealed reg only, or a sealed rectifier only, or an unsealed regulator/rectifier......


Anyway - see http://www.kiwibiker.co.nz/forums/sh...28#post1717328

....And remember the quote - "arguing with an engineer is like wrestling with a pig in mud. After a while you realise that the pig is enjoying it!"

[jonbuoy]

The rectifier (rec) turns the AC into DC, the regulator (reg) controls the output voltage of the rect to the battery- on a fixed magnet type "alternator" like most bikes use. The Rect side of things is probably ok it will be the REG side thats poked anyway.

[Craig Anderson]

Hi guys

I have replaced the rectifier with the exact same problem as above, charging the battery to 17/18volts, and after 5 months blew it again, do you think its something with the alternator or just the HONDA rectifier and I should switch to aftermarket ?

CHEERS.