UCH0053/UCH0054 Operation ManualNewark, New York | Phone: 315-332-7100 | Fax: 315-331-7800©2017 Ultralife Corporation • www.ultralifecorp.com • All specific subjects to change without noticeThe information contained herein is for reference only and does not constitute a warrant of performance • 08 SEP 17 UBI-05346 REV: -Page 16 of 213.10.2 "Charge Complete" Indicator LEDsThe four green LEDs labeled “FULL 1A, 1B, 2A, 2B” indicate when the battery in the corresponding locationis fully charged.3.10.3 "Failure/Fault" Indicator LEDsThe red LEDs will illuminate for particular failures or faults as mentioned below. Battery type is not authorized by the charger. Battery temperature is high (Greater than 65°C). Battery is not properly inserted. Charger is unable to charge the battery. Internal charger temperature is too high.3.10.4 "Calibration Request" Indicator LEDsThe amber LED labeled “CAL ENABLE” will indicate when the smart battery requests calibration or thecalibration routine has been activated.Flashing: One battery from one BAY is requesting calibration.Fast Flashing: One or more battery(ies) from both bays in a pair are requesting calibration.Steady: Indicates Calibration Enabled.3.10.5 "External Charging Port" Indicator LEDsThe LEDs associated with the external charging port connectors indicate external charging. If the userconnects the battery to any of the external connectors, the corresponding LED will illuminate. If a batteryis already inserted into the corresponding location in either bay and is currently charging, the LED may notilluminate.