How new are your batteries? If they are fairly new, it is possible that the charger is not bringing them to full charge. If you know someone that has a known good battery, try it and see. The quick red LED blinking usually indicates batteries with one or more shorted cells if they are nickel-metal hydride (NMH) or nicad. Overcharging will cause them to vent and short internally. This is usually what happens to our squad radio batteries that get charged every night but only used in receive mode about 4 hours.
Bob
__________________
Extra Class Op.
Gmrs Repeater user
Easley, SC
|