Battery extra digital BL-5CT for Nokia C3 C5 C6 5310 3720 3.7V 1020mAh

Extra Digital BL-5CT is a rechargeable lithium-ion battery designed as a replacement power source for compatible Nokia mobile phones. With a nominal voltage of 3.7 V and a capacity suited for everyday phone use, the battery restores runtime for calls, messaging and basic applications. The cell is protected against overcharge, overheating and ignition, and uses optimized discharge parameters to maximize usable capacity.

Advantages

The battery charges faster and offers longer service life compared with standard cells, and it has no memory effect so it can be recharged at any time without reducing performance. Built-in protection circuits guard against overcharging, overheating and ignition, while optimized discharge characteristics help maintain available capacity during use.

Suitable for

• Replacement battery for Nokia phones using BL-5CT compatible modules
• Restoring runtime for calls and messaging on older Nokia feature phones
• Keeping a spare battery for travel or extended usage

Key specifications

• Type: Li-ion
• Voltage: 3.7 V
• Capacity: 850 mAh (manufacturer text) — product data lists 1020 mAh
• Compatible part number: Nokia BL-5CT
• Warranty: 12 months

How to use

Switch off the phone before removing the old battery. Remove the back cover and replace the original BL-5CT battery with this Extra Digital unit, observing correct polarity. Reinstall the cover and charge the battery fully before first use. Use the phone’s original charger or a compatible charger rated for the device.

Recommendations

Dispose of waste batteries and accumulators in designated collection containers according to local regulations. If compatibility is uncertain, consult a product specialist before purchase.