BAKTH-874080PACK, 3.7V 3600mAh, 13.32Wh

‌2. ‌Charging & Maintenance Guidelines‌

‌Recommended Charging Method‌:
Use a ‌dedicated single-cell (1S) CC/CV lithium-ion charger‌ set to ‌4.2V ±0.05V‌.

• ‌Optimal charge current‌: ‌0.5C = 1.8A‌ → maximizes cycle life (>800 cycles)
• ‌Maximum charge current‌: ‌1C = 3.6A‌ → enables fast charging (reduces cycle life to ~500–600 cycles)
• ‌No balancing required‌: As a single-cell design, voltage uniformity is inherent — simplifying charger design and reducing cost.

‌Storage Guidelines‌:

• ‌Short-term storage (<1 month)‌: Maintain at ‌3.8–4.0V‌ (40–80% state of charge)
• ‌Long-term storage (>1 month)‌: Store at ‌3.7V (~50% charge)‌ in a cool, dry environment (‌15–25°C‌)
• ‌Recharge interval‌: Recharge every ‌3 months‌ if unused to prevent deep discharge-induced capacity loss

‌Operating Environment‌:

• ‌Charge temperature‌: ‌0°C to 45°C‌
• ‌Discharge temperature‌: ‌-20°C to 60°C‌
• ‌Avoid‌: Exposure to water, metal objects, puncture, crushing, or direct sunlight

‌Safety Warnings‌:

• ❌ Never disassemble, pierce, or modify the cell or PCM
• ❌ Never charge with NiMH, lead-acid, or multi-cell chargers
• ❌ Never expose to temperatures >65°C or < -30°C
• ✅ Always use original or certified replacement chargers
• ✅ Store away from flammable materials and conductive surfaces