Battery Buddy in HO tender with three 450 MAh batteries from Sparkfun plugged in.
HO tender with power plug in on position
Batteries being charged with Tenergy balancing charger. Plug in off posiiton
Assembled Battery Buddy and Switch Plug
Battery Buddy Board Kit Comes with Battery Buddy board with fuse and battery connecters (JST-PH) pre-installed. Includes SIP connectors for making a charging port and on/off plug.
Locommotive not included. Charger may look different.
Battery Charger and Charging Cord for Battery Buddy A simple balancing charger and a purpose built cord for use with the battery buddy. The charger charges each cell individually for best results. Comes with a presoldred extension cord to connect to the Battery Buddy.
LICHRG $25.95USD
Usage:
Make sure locomotive is off. Unplug charger from wall outlet. Hook up charger to locomotive charging port with red to positive side. Plug in charger to wall outlet. You should get 3 red lights indicating charging. If you get no lights then unplug, reverse charging cord and try again. 3 green lights indicate battery is full.
Charge Cord for Battery Buddy If you already have a balancing charger and just need the chsrge cord for the Battery Buddy (it comes with the charger above). One end fits th battery charge port and the other plugs in to the standard 3S charging port of most LiPo chargers.
BBCCORD $6.95USD
Please allow 1-2 weeks for delivery
Large Scale Wiring Components
Large Scale Charging Circuit
Usually used with 4 cell 14.*V batteries in G scale locomotives. This circuit was delevoloped by Steve Seidensticker who has professionally installed batteries in dozens of large scale locomotives.
Wiring of Barrel Plug so that inner tip is positive (red) and the outer ring is negative (black)
Example installation on the bottom of a large scale locomotive.
5.5x2.5mm Barrel Jack
Use as a charging port. Has a built in switch that detects when plug is inserted.
BRJK01 $2.95USD
5.5x2.5mm Barrel Plug For Adapting Your Charger
Use with the Wiring Kit above to adapt your own charger to the jack. The outer sleeve is threaded and can be removed to reveal soldering tabs inside. Wire so that the inside is positive and the outer ring is negative.
BRPG01 $2.95USD
Please allow 1-2 weeks for delivery
SPST Mini Toggle Switch
Small mini-sized toggle switch but still able to carry the current of large scale locomotives. Takes a 1/4" mounting hole.
TGSW01 $2.95USD
Please allow 1-2 weeks for delivery
Magnetic Latching Relay Switch
This switch turns on when a magnt is brought next to it and then stays on when magnet is removed. Turn the magnet around and the switch turns off when the magnet is brought briefly nearby. Mark the magnet ends and the switch location to help remember. If a magnet is left nearby it will stay on so it must be mounted away from motor and speaker magnets.
Carry Current 0.7 Amp
1.25" long by 0.15" wide by 0.23" high
LMSW01 $5.95USD
Push-On Push-Off Switch
A 3A latching switch that looks "railroady" enough to hide in plain sight.
The body is 0.7" long by 0.5" wide and high.
PPSW01 $2.95USD
Please allow 1-2 weeks for delivery
Charger for Large Scales with Barrel Plug installed
This is the Tenergy 3000 14.8V (4 cells) charger with a barrel plug installed. This makes a very handy way to charge large scale locomotives.
