Battery failures and firmware issues with professional cinema batteries

Gear

ZephyrCan I fly my Alexa or RED on a Zephyr?389

Master SeriesIs a used Master Series rig worth buying as a first big rig?191

BFDHow do I power my BFD receiver from my camera or sled?186

VoltCan I retrofit a Volt onto my existing sled or gimbal?168

ArtemisHow do I power my camera and accessories from an Artemis sled?166

MDRWhere can I mount my Preston MDR on my rig?143

ModulusIs there a Modulus option for HD wireless video?141

G-70Will my G-70 fit my vest, gimbal or sled?126

FI+ZCan I control iris and zoom wirelessly, not just focus?60

HU3Where can I get my HU3 repaired, refurbished or repainted?60

CineLiveHow do I pack and case my CineLive rig for transport?54

G-70XHow does the G-70X compare to Pro Titan, Xarm and other arms?46

Trinity 2Is Trinity 2 SUP 3.0 firmware safe to install or buggy?46

Ultra VestWhich vest should I choose for my body size, comfort and operator type?39

2014Batteries/Power forum

12 years old. Gear and prices may have changed since.

A battery can display a full charge on its meter while being unable to deliver power due to internal cell degradation.
Some batteries show charge readings but produce no voltage at the output terminals, which is typically a firmware issue that requires reprogramming by the manufacturer.
Thermal sensors and capacitors in the temperature sensing circuit can fail in some battery models and require professional repair.
Chargers equipped with diagnostic modules can help recondition batteries by running discharge and conditioning cycles to improve meter accuracy.
The 2722 charger model has the discharge function built into its logic control board and cannot be disconnected.
The 2702 Quad and 2400 series chargers allow the discharge function to be disconnected by unplugging a ribbon cable from the logic control circuit board located toward the right rear above the fan.
Entering diagnostic test mode on a charger during film production can be problematic if the operator forgets to cancel the automatic 24-hour test cycle, preventing the battery from charging when needed.

One report of a thermal sensor or capacitor issue is anecdotal and the prevalence is unclear.
The suggestion about opening and modifying charger hardware was uncertain and may be unreliable.
The effectiveness of discharge and conditioning cycles for improving battery performance was described as preliminary and inconclusive at the time of discussion.