PRO290B - Battery charger Lenmar - Free user manual and instructions

Product Type	Battery Charger
Brand	Lenmar
Model	PRO290B
Dimensions (approx.)	4.0 x 2.5 x 1.2 inches
Weight (approx.)	0.4 lbs
Input Voltage	100-240V AC, 50/60Hz
Output Voltage	1.2V - 4.2V DC (depending on battery type)
Output Current	500mA - 1000mA per channel
Compatible Battery Types	AA, AAA, NiMH, NiCd, Li-ion (if supported)
Number of Charging Bays	2 or 4 (typical)
Charging Modes	CC/CV trickle charge, overcharge protection
Safety Features	Overcurrent, overvoltage, short circuit, reverse polarity protection
Indicator Lights	LED charge status indicators
Operating Temperature	0°C - 40°C
Storage Temperature	-20°C - 60°C
Housing Material	ABS plastic
Maintenance	Wipe with dry cloth; avoid moisture
Spare Parts Availability	Contact Lenmar support
Repairability	User replaceable fuse (if applicable)

Frequently Asked Questions - PRO290B Lenmar

What types of batteries can I charge with the PRO290B?

The Lenmar PRO290B is designed to charge NiMH and NiCd rechargeable batteries in popular sizes like AA and AAA. Some versions may also support Li-ion cells. Always check the manual for compatibility.

How long does it take to charge batteries?

Charging time depends on battery capacity. For example, a 2000mAh NiMH AA battery may take about 2-4 hours at 500mA output. The charger includes trickle charging to prevent overcharge.

Does the charger have overcharge protection?

Yes, the PRO290B features automatic overcharge protection. Once batteries are full, the charger switches to a maintenance/trickle mode to prevent damage.

Can I charge different battery types at the same time?

It is recommended to charge only identical battery types and capacities in the same bay. Mixing NiMH and NiCd or different capacities may lead to incomplete charging.

What do the LED indicators mean?

Typically, a red LED indicates charging, green LED indicates fully charged, and a flashing LED may signal a defective battery or error. Refer to the manual for exact codes.

Is the charger suitable for travel?

The charger accepts 100-240V AC input, making it compatible with global voltage. You may need a plug adapter for certain regions. Its compact size is travel-friendly.

How do I clean the charger?

Unplug the charger and wipe it with a soft, dry cloth. Avoid using liquids or abrasive cleaners to prevent damage to the electronics.

What should I do if a battery gets stuck?

Do not force it. Gently tap the charger to dislodge the battery. If stuck due to corrosion, use a pencil eraser to clean the terminals. Never insert sharp objects.

Can the charger operate in extreme temperatures?

The recommended operating temperature is 0°C to 40°C. Charging in very cold or hot conditions may reduce performance or cause safety issues. Allow batteries to acclimate.

Where can I find a replacement fuse?

If the charger has a user-replaceable fuse, contact Lenmar customer support for the correct part. Many chargers have a built-in resettable fuse that requires no replacement.

USER MANUAL PRO290B Lenmar

Instruction Manuel for PRO290

• Charges two or four AA / AAA NiCd or NiMH batteries
- Convenient fold-down / flip-up AC plug
- Charges N iCd batteries in 4 – 5 hours, NiMH in 6 -8 hours
- Highest rated Nickel-Metal Hydride technology – up to twice the capacity of NiCd's
- NoMEM Technology – charge batteries as often as you want with no memory effect.
- Lenmar batteries are environmentally friendly – no toxic cadmium

1. Remove clear plastic battery spacer before use.
2. Insert 2 or 4 rechargeable batteries; if inserting 2 batteries, use the 2 left hand or 2 right hand slots.
3. Red LED indicates charging
4. Remove battery after about 8 hours

Another power solution from Lenmar, makers of innovative chargers including the award winning Mach 1 Speed Chargers, batteries and accessories for camcorders, digital cameras, laptops, cellular and cordless phones, DVDs, PDAs, and other portable electronic devices. Check out entire product line at www.poweredbylenmar.com

Your Lenmar battery charger is warranted to be free of defective parts and workmanship for 2 years from the original date of purchase. Warranties are not transferable. The warranty excludes damage resulting from accident, misuse, modification, delay or loss of use, or damage to equipment. To obtain warranty information, visit our website or call [phone]