Models
CAS-4 and L4-A Lithium-Ion Battery Chargers
Models
CAS-4 and L4-A Lithium-Ion Battery Chargers
Information & Instructions for the Model CAS-4 and L4-A
Lithium-Ion, Battery ChargersThe GS Technologies, CAS-4/L4-A Lithium-Ion Battery Chargers have the benefit of recharging up to four batteries at the same time with each battery being recharged and maintained by its own individual circuitry and status indicators.
The following specifications apply to both the CAS-4 and the L4-A with the exception that the CAS-4 is adjusted for the 7.4 volt battery and the L4-A is adjusted for the Sony FP Series batteries at 7.2 volts.
Typical recharge time is 7 hours to recharge four batteries. A longer recharge time produces less heat which can help to prolong battery life and useable capacity.
The CAS-4/L4-A Battery Chargers are powered by a UL, I.T.E., L.P.S., and T-Mark Listed Power Supply. Input voltage is 100-240 VAC 50/60 hz with an output of 15 volts DC @ 1.2 amps making it ideal for US and International applications. European, UK, and Australian power adapters are available.
IMPORTANT
Use only the power adapter supplied with the charger.
Damage or poor performance may result from using other
power adapters and will void the warranty.
The LED functions are described as follows:Both models have a display panel consisting of five LED’s. The left-most LED indicates power to the unit and should be on at all times. The remaining four LED’s are Bi-Color and indicate the status of each individual battery.
When power is first applied to the charger without batteries in place, a self-test is initiated by all five LEDs lighting immediately with green color. Within a second, the four battery status LEDs will turn off indicating that the charger is working properly. The left most green LED indicates power on.
When a battery is first placed in a slot for recharging, the associated LED displays RED indicating that the battery is now being recharged. (Note that the battery has two curved corners which need to face the front of the charger for proper insertion).
When a discharged battery is placed in the charger and the LED doesn’t display any color (remains white), the battery may not be inserted properly or the battery may have a blown fuse internally.
Within 6-7 hours the RED LED will turn OFF and ON rapidly. This is an indication that the battery has reached the desired charge point but is dropping below it rapidly. However, the battery is still being charged and once the battery begins maintaining the full charge point, an alternating RED-GREEN indication will appear with GREEN becoming the dominant color as the battery retains its charge at the proper charge set-point.
When the LED is displaying solid or flickering GREEN, the battery has reached its proper charge and is available for service. When the LED stays on RED continuously or only flashes RED beyond the normal charge period of 6-7 hours, the battery is losing its capacity to hold its charge. A display of solid RED (after being on charge for 8-10 hours) indicates the battery should be taken out of service. When the LED continues to flash RED or is alternating between RED-GREEN (appears yellow) after normal charge time, it indicates that the battery has a minor reduction in capacity, but is still useable.
One of the benefits of the GS Technologies Circuitry is to inform the user of this reduced capacity condition and to maintain the battery at its highest possible capacity up until the time it is placed in service. Chargers that turn off after a charge time of 2-3 hours allow a battery with reduced capacity to lose part of its charge before being put into service. The Model L4-A Battery Charger provides for maximum utilization of a battery’s reduced capacity regardless of its condition.
