INSTRUCTION MANUAL
Single Unit Rapid Charger
PROFESSIONAL TWO-WAY RADIO CHARGER
Model: CHU1
Communications Systems
Intended Use
This universal rapid charger can charge a wide
range of two-way radio rechargeable batteries. The
charger works with the following:
A. Lithium-ion, Lithium Polymer, Ni-CD, Ni-MH
batteries
B. Battery capacities between 700mAh and
4000mAh.
Caution
1. Do not make any modifications to the equipment.
2. Do not replace the battery adapter or the
power adapter with similar parts. This can cause
damage to the charge unit or to the rechargeable
batteries, and will void your warranty.
3. Never attempt to charge alkaline or dry cell
batteries. They may burst causing damage and
personal injury.
4. Never let metal, wire, or other electrical
conductors touch any internal part of the charger.
5. Make sure battery and charger contacts are
always clean; otherwise batteries may not fully
charge.
6. Use indoors only. Never expose the charger to
rain, snow or any liquid.
7. Never incinerate used batteries as it may cause an
explosion.
8. Keep the charger away from television sets or
radios to prevent interference.
9. When charging Li-ion battery, your outlet must
have a protection circuit.
10.
Avoid overcharging – Radios/batteries must
be physically removed from the charger to stop
charging. Batteries should not be left in the
charger for more than 15 hours after the LED
indicator has turned green.
11.
If your batteries have little to no capacity
even after being fully charged, completely
discharge them and then fully charge them again.
If they have very little charge or do not retain a
charge, please purchase a new battery.
Charger Description
1. Power supply adapter
2. 110-240V power supply
3. Charging base. (LED
indicator in front.)
Charging Procedure
1. Connect the adapter (1)
to the charger jack on
the rear of the charging base (3).
2. Plug the power supply (2) into an AC outlet.
3. The LED in the front of the base will be orange
for a few seconds as the unit runs a self-diagnosis.
3
2
1
The LED will go dark when the unit is ready.
4. Slide a battery or radio into the charger. Be sure
radio is turned off before insertion into charger
5. The LED indicator will be orange during battery
diagnostics, which may last from a few seconds to
a few minutes.
6. The LED indicator will be solid red during
charging.
7. The LED indicator will begin blinking green when
charged capacity is over 90%.
8. The LED indicator will be a steady green when
charging is completed.
9. You may remove the radio and/or battery when
the LED indicator is steady or blinking green.
Notes:
When the LED flashes red, a fault condition exists.
There are three different flash patterns, each
indicating a specific type of issue. The flash patterns
and fault conditions are as follows:
One Flash
- Indicates charging complete, but
battery is under charged. Battery voltage is
below minimum level required. This warning
happens after charging is complete.
Two Flashes
- Indicates battery contact is “open”
and current is not passing through the (+)
and (-) contacts on the battery. This warning
is provided after the initial diagnostic stage
is complete. Check charging pod to confirm
compatibility with battery or contact your RCA
dealer.
Three Flashes
- Indicates over-current condition
caused by battery short circuit. Have the battery
checked by an RCA technician. Do not attempt
to charge the battery if a short circuit exists.
IMPORTANT
1. After a charged battery is removed, the LED
indicator may remain on for a few seconds. Please
wait for the LED to turn off, before putting
another battery/radio into the charging slot.
2. Using the charger outside the specified
temperature range (59° - 86°F/15° - 30°C) may
lead to erratic operation, and batteries can be
under-charged.
CHU1 Specifications
Dimensions: 4.5” x 5.4” x 2.6” (115 x 136 x 66mm)
Weight:
9.7 oz. charger only (275g)
Operating Temp:
59° - 86°F (15° - 30°C)
Storage Temp:
32° - 149°F (0° - 65°C)
Adapter Output:
15 - 18V {500mA - 900mA)
Approval:
FCC Approval
