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Battery Gauges and Chargers

Küryakyn LED Battery Gauge

Signal Dynamics LED Battery Gauge

Küryakyn LED Battery Gauge

by Küryakyn

L.E.D. Battery Gauge
Unfortunately, most riders find out that their charging system has failed when they end up broken down on the side of the road. A little advanced warning can keep you from being stranded in the middle of nowhere. Now you'll know at a glance whether or not your charging system is working properly.
Our L.E.D. Battery Gauge is an array of L.E.D.s indicating the operating voltage of the bikes electrical system. Green L.E.D.s represent the normal operating range of your charging system, 12.5v to 14.5v. Amber L.E.D.s warn the rider that the bike is not charging. If the reading drops below 10v or exceeds 15v, a flashing red L.E.D. will alert the rider of an impending stall or the possibility of damage to the battery and/or sensitive electronic components on the motorcycle.
Simple two-wire connection and a compact size (about 2"x3/4"x3/16") make installation a breeze. A daylight sensor automatically adjusts the brightness of the L.E.D.s. They are bright during the day for visibility and dim at night so as not to blind the rider. Works on any 12VDC negative ground vehicle.

Chrome LED Battery Gauge
Installation Instructions

Item:  4219
MSRP: $44.99  Price:
Black LED Battery Gauge

Installation Instructions

Item: 4218
MSRP: $44.99  Price:

LED Battery Gauge with Remote Flush Panel Mount LED

By Signal Dynamics

Flashing Green - Voltage Above 15.25 VDC – This prolonged over-voltage condition can destroy batteries, especially gel-cells.

Steady Green - Above 12.9

Steady Amber - Above 12.6

Steady Red - Above 12.1

Flashing Red - Below 12 VDC – During this condition, if the engine is running, do not shut down until service can be provided. Restart of engine is unlikely. Reduce electrical load.

What’s it Doing Now?  Normally, when your charging system fails, it's silent, and you realize it too late! Electrical system failures are never convenient and are hardly detected before it’s too late. With this easily installed "Heads-up Voltage Monitor™", you instantly know the condition of your battery / charging system voltage. At a glance, the single multi-color LED (light emitting diode) indicates the state of the charging system; either the voltage is normal, abnormal or some place in between. The heart of the system is a micro-processor that monitors the output of the charging system 50,000 times per second and is accurate to within 200 milli-volts. The Heads-Up Voltage Monitor's™ onboard microprocessor performs a self-test each time voltage is applied.  With the "Heads-up Voltage Monitor™" installed, at a glance you will know your systems voltage condition … and what it is doing now!


Instant Visual Recognition

Single LED Visual Indicator 

Precision Microprocessor Monitoring  

Automatic Self-Test

Auto-dimming - reducing LED night-time glare

Easy installation - can be mounted virtually anywhere.


Voltage Range: 6 to 17 VDC, 

Accuracy: within 200 millivolts.

Amp Draw: 20–85 milli-amps. 

Dimension: 2 1/4” L x 1 5/8” W x 5/8” H

Voltage sampling: 50,000 times per second.

Serious Fault Detection & Notification

Heads-Up Voltage Indicator - Flush Panel Mount LED

Item: 01050
MSRP: $29.95  Price: $28.45







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