27-02-2019, 07:13 PM
(This post was last modified: 27-02-2019, 08:27 PM by jansens.
Edit Reason: FIxed an error.
)
Paul, I am also using 12v and a RB-106 for my special. I am still working out exactly the best way to do it. It is possible to use the cut out and the regulator. I am still working out how to do the resistor part. The resistor is just there to provide two different charge levels (the summer and winter setting).
One thing you can do to the RB-106 to help reduce arcing is put a snubber diode across the regulator coil. This document explains that (and lots of other useful things): https://www.mgexp.com/phile/3/191288/REP..._RB106.pdf
Also Moss Motors have some good (oddly relaxing - it's the guys calm voice) films on the RB-106 and how it works and how to adjust it. This is one of them, there are others too.
When I get mine setup I was going to make sure the regulator voltage is correct for the battery. A lot (most?) 12 volt car batteries sold now are the Calcium Lead acid type. As far as I can tell they charge just like a normal lead acid under normal conditions. I was basically going to set the regulator to give 14.2 - 14.5 volts.
You can have issues if Calcium batteries are very discharged in which case you need a charger capable of specifically charging Calcium types to recover them. I bought a new charger a few years ago and it does indeed have a Calcium setting on it and I always wondered what that was for. It gives LESS oomph during the absorption part of charging then a slightly higher float charging voltage.
The battery I bought was a 12 volt Century so I am going by the information they provide here for charging voltages and so on: https://www.centurybatteries.com.au/cont...arging.pdf
The Calcium type are supposed to be more resistant to overcharging apparently which might be a plus in an older, mechanically voltage regulated car.
Simon
One thing you can do to the RB-106 to help reduce arcing is put a snubber diode across the regulator coil. This document explains that (and lots of other useful things): https://www.mgexp.com/phile/3/191288/REP..._RB106.pdf
Also Moss Motors have some good (oddly relaxing - it's the guys calm voice) films on the RB-106 and how it works and how to adjust it. This is one of them, there are others too.
When I get mine setup I was going to make sure the regulator voltage is correct for the battery. A lot (most?) 12 volt car batteries sold now are the Calcium Lead acid type. As far as I can tell they charge just like a normal lead acid under normal conditions. I was basically going to set the regulator to give 14.2 - 14.5 volts.
You can have issues if Calcium batteries are very discharged in which case you need a charger capable of specifically charging Calcium types to recover them. I bought a new charger a few years ago and it does indeed have a Calcium setting on it and I always wondered what that was for. It gives LESS oomph during the absorption part of charging then a slightly higher float charging voltage.
The battery I bought was a 12 volt Century so I am going by the information they provide here for charging voltages and so on: https://www.centurybatteries.com.au/cont...arging.pdf
The Calcium type are supposed to be more resistant to overcharging apparently which might be a plus in an older, mechanically voltage regulated car.
Simon