CRG-255 - Battery charger Steren - Free user manual and instructions
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| Product Type | Battery charger |
| Brand | Steren |
| Model | CRG-255 |
| Compatible Batteries | Ni-MH rechargeable AA and AAA batteries |
| Number of Charging Slots | 4 independent slots |
| Charging Technology | Automatic constant current with cutoff |
| Input Voltage | 100-240 V AC, 50/60 Hz |
| Output Voltage | 1.2 V DC per battery |
| Charge Current | About 500 mA per slot |
| Charge Control | Automatic shut-off at full charge |
| Status Indicators | LED indicators for charging and completion |
| Safety Features | Overcharge, short-circuit, reverse-polarity protection |
| Housing Material | Durable ABS plastic |
| Operating Temperature | 0°C to 40°C |
| Storage Temperature | -10°C to 50°C |
| Dimensions | Approximately 115 x 70 x 35 mm |
| Weight | Approximately 120 g |
| Maintenance | Disconnect before cleaning; wipe with dry cloth; do not use liquids |
| Repair and Spare Parts | No user-serviceable parts; contact Steren service center |
| Disposal | Recycle at an authorized e-waste facility |
Frequently Asked Questions - CRG-255 Steren
What types of batteries can I charge with the Steren CRG-255?
The CRG-255 is designed for Ni-MH rechargeable AA and AAA batteries. Do not use standard alkaline batteries because they are not rechargeable and may leak or burst.
Can I charge AA and AAA batteries at the same time?
Yes, the charger has independent slots, so you can mix AA and AAA batteries as long as each battery is inserted in the correct slot. The charger automatically manages the appropriate charging current.
How do I know when the charging process is complete?
Each charging slot has a status LED. A red light usually means charging, while a green light or a light that turns off indicates the battery is full. Always check the markings on the device.
How long does it take to fully charge a battery?
Charging time depends on the battery capacity. With a charge current of about 500 mA, a 2000 mAh AA battery takes about 4 to 5 hours. AAA batteries take less time.
Can I leave the charger plugged in after charging?
The CRG-255 has automatic shut-off and overcharge protection, so short periods of being plugged in are safe. However, for safety and energy saving, unplug the charger when not in use.
What should I do if the charger gets hot during use?
A slight warmness is normal. If the charger becomes very hot, unplug it, remove the batteries, and wait for it to cool. Check that the vents are not blocked and the batteries are in good condition. Contact Steren support if it keeps overheating.
Can I use the charger with non-rechargeable batteries?
Absolutely not. The charger is intended only for rechargeable Ni-MH batteries. Non-rechargeable alkaline batteries may overheat, leak, or even explode.
How do I clean and maintain the charger?
Before cleaning, unplug the charger. Use a soft dry cloth to wipe the exterior. Never use water, solvents, or abrasive products. Keep the metal charging contacts clean and dry.
Is the charger safe to leave unattended?
The charger includes overcharge, short-circuit and reverse-polarity protection, which makes it safe in normal conditions. Still, avoid leaving it unattended for long periods or near flammable materials.
Where can I find spare parts or repair for the CRG-255?
This charger has no user-serviceable internal parts. For repairs, go to an authorized Steren service center or qualified technician. Opening the charger may damage it and void the warranty.
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USER MANUAL CRG-255 Steren
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Product information
Brand : Steren
Model : CRG-255
Category : Battery charger