Tornado
VIP MEMBER
- Joined
- Dec 5, 2017
- Messages
- 5,257
With a voltmeter, all you need to know is if there is more thsn around 12.2 volts, your battery is charging. More than 14.8 to 15, it is overcharging. That is very informative and it is what the charge warning leds do for you without an actual meter needed ...the led can go where the original assimilator warning light was in the headlight shell, so things remain stock in appearance.With an ammeter, you would know what your rotor/stator was doing because it shows current flow direction and strength of flow. If the needle is on the negative side of the ammeter's zero, then charge is flowing out of the battery. If the needle is on the positive side of Zero, then current is flowing into the battery from the rotor/stator....
With a volt meter, you have to guess. That's why if you have a voltmeter installed on your bike, you keep an eye on it in the beginning, so you get an idea of what the meter looks like when everything is working properly. This way you notice the drop in voltage sooner as you ride, which gives you a chance to pull in somewhere by choice rather than be stuck in no man's land.
I always have my bike plugged into this tiny 2 amp battery tender. It's a really tiny unit. I also have one of those quick disconnect pigtails going to the battery terminals and exiting under my seat. If my battery was loosing charge, I could pull in somewhere and plug the charger in with no disassembly...