Nokia BL-5C Lithium-ion battery

Description

Nokia BL‑5C is a compact, removable Lithium‑Ion battery designed for various Nokia feature phones and other portable devices. Here’s a detailed breakdown:

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🔋 Basic Specs

Voltage: 3.7 V nominal

Capacity: Commonly 1020 mAh (≈3.8 Wh) — some manufacturers claim up to 1200 mAh, though independent tests suggest anything over ~1250 mAh is likely inflated .

Dimensions: ~53 × 33.9 × 5.7 mm; weight ~35–60 g .

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🛠 Compatibility

Widely used in Nokia models such as 1100, 1600, 1600i, 1680, 2300, 2600, 2700, 2730, 3100, 3110, 6230, 6630, 6680, 7610, C1-01, C2-01, 5130 XM, among many others .
It’s also used in select non-phone devices like Bendix‑King handhelds and some radios .

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⚙ Charge & Safety

Maximum charging voltage: 4.2 V

Some datasheets (likely from generic sources) recommend charge via CC‑CV method: standard at 300 mA over ~3.5 h, fast at 600 mA over ~2.5 h .

Many third-party versions include protection circuits (over‑charge, discharge, short‑circuit) and comply with standards like CE, RoHS .

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🔁 Lifespan & Performance

Expect around 300–500 charging cycles before capacity significantly drops .

In feature phones such as Nokia 2730 or 1100, it can provide impressive standby (up to ~360–400 h) and talk time (~5–10 h) .

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⚠ Beware of Inflated Capacities

Some aftermarket high‑capacity BL‑5C batteries advertise 1500 mAh or higher, but user tests suggest these claims are often exaggerated .

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✅ Summary

The Nokia BL‑5C is a reliable, widely compatible Li‑Ion battery featuring 3.7 V, approx. 1000–1200 mAh capacity, compact size, and support from both OEM and reputable third-party suppliers. Always look for reliable specs and safety certifications, and be wary of manufacturers claiming unrealistic capacities.