The Altertek State of Charge Gauge is intended for lithium batteries in portable or fixed applications where a low cost state of charge display is required.
Measuring both current and voltage allows the state of charge to be accurately counted, rather than estimated from the voltage alone.
State of charge is displayed using 10 LEDs or an optional display.
A precision coulomb counter integrates current through a sense resistor (or external shunt) between the battery’s positive terminal and the load or charger.
The Altertek State of Charge Gauge features programmable high and low thresholds for measured quantities. If a programmed threshold is exceeded, the device communicates an alert using the on board LEDs, external alarm contacts and optional screen.
Bulkhead Mount SOC PCB with Display
Operating Temperature Range
-40 - +60 Deg C
Storage Temperature Range
20 Deg C +/- 5 Deg C
Hardware Based Over and Under Voltage Protection
Passive Cell Balancing
Dual Cell Temperature Measurement
State of Charge Indication
Onboard Circuit Temperature Measurement
Built in self tests
2 x Software Controlled Relay Drivers
* Fail on is still subject to hardware based safety