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Forum Tips and Help / MOVED: LM-3 voltage
« Last post by G8B4Life on February 03, 2026, 04:29:48 AM »
This topic has been moved to RailPro Specific Help & Discussion.

https://rpug.pdc.ca/index.php?topic=1781.0

Reason: moved to more appropriate board.
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RailPro Specific Help & Discussion / Re: How often do you change the batteries in your HC?
« Last post by gregeusa on February 02, 2026, 06:27:59 PM »
right now the frontrunner are the panasonic eneloop batteries, and now there are actually 4 "grades" of them to make it more confusing.

They stand out from other NiMH batteries by having a significantly lower level of self discharge

be sure you investigate all 4 flavors (you might only find 3, but there are 4) if you are really picky...

be sure to note the mah capacity
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RailPro Specific Help & Discussion / Re: How often do you change the batteries in your HC?
« Last post by faithie999 on February 02, 2026, 05:52:14 PM »
there are 3 AA batteries in my HC-2b.

while I usually believe all brands of AA batteries (of the same type) are created equal, I have had better success in other application with the Energizer brand rechargeables (but not Li, as noted by others).

Ken
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RailPro Specific Help & Discussion / Re: How often do you change the batteries in your HC?
« Last post by gregeusa on February 02, 2026, 02:27:49 PM »
I understand the batteries in the HC are two AAA? that would be about 1.2v x 2 in normal state, or 2.4v

an individual li-ion rechargeable is about 3.6 volts... as stated, a completely different charging circuit, and voltage, etc.

Also I believe the batteries are Nickel Metal Hydride, not Nickel Cadmium... (but voltages are same)
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RailPro Specific Help & Discussion / Re: Multiple HC-2b's & Linked Units
« Last post by Espeelark on February 02, 2026, 11:25:57 AM »
Thanks for that comment LVRR1856.
Yes - all of my HC's are individually named. They weren't however discovered/known to all of the others. I've since effected that change.
I will repeat my experiment of linking locos and cycling track power, etc., to see if this makes any difference to as to when any particular HC can recognize the linked locos.
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RailPro Specific Help & Discussion / Re: How often do you change the batteries in your HC?
« Last post by JRad on February 02, 2026, 10:38:15 AM »
No. The charging circuit is designed for NiMh batteries. It would not properly charge LiIon and may cause other problems when charging.
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RailPro Specific Help & Discussion / How often do you change the batteries in your HC?
« Last post by zr1rob on February 02, 2026, 10:12:27 AM »
BTW: can the nicads in the HC be swapped with LI-types?
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RailPro Specific Help & Discussion / Re: Different locos, same number?
« Last post by zr1rob on February 02, 2026, 10:10:50 AM »
Quote from: Espeelark on January 27, 2026, 04:38:13 PM
If you have more than one HC, just remember that only the specific HC that created the link will be able to "see" the linked locos after the track power has been cycled off/on.

so the HC is what holds the link not the locos, right?
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RailPro Specific Help & Discussion / LM-3 voltage
« Last post by Berkshire765 on February 01, 2026, 12:55:43 PM »
Hello,
         I am currently trying to power a 1/25th scale car for G-scale. I have the motor from a G-scale Bachmann Trolley, which is what a lot of the HO locomotives use. My problem is that I cannot fit a larger 14v - 18v battery pack inside the chassis when the shell is added. So that being said what is the minimum voltage battery that can be used with this board to operate the motor and 4 micro led's ?. Any help is much appreciated. Travis
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General Discussion / Re: Coffee Grounds/Walnut Shells for Ballast
« Last post by LVRR1856 on January 31, 2026, 10:49:52 AM »
Just learned that Commercial Ballast from Woodland Scenics can be ground up walnut shells, dyed and painted of course.

Also use for media in sand blasting ...

Just a tid bit.
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