4S 40A 18650 Li-Ion Battery Protection Board with Balance 14.8V/16.8V

Key Highlights

• ✓4 Series Battery Configuration:
• ✓Designed for 4 cells in series, creating a 14.8V nominal and 16.8V fully charged lithium battery pack.
• ✓Suitable for 18650 or similar lithium cells.
• ✓✅ High Current Capacity:
• ✓Supports 40A continuous discharge current, making it ideal for high-power applications.
• ✓20A continuous charging current capacity ensures efficient charging.
• ✓✅ Overcharge & Over-discharge Protection:
• ✓Prevents cells from overcharging (>4.25V) or over-discharging (<2.5V).
• ✓Enhances safety and longevity of the battery pack.
• ✓✅ Temperature Resilience:
• ✓Wide operating temperature range (-40°C to 85°C), ensuring performance in extreme conditions.
• ✓✅ Balanced Version:
• ✓The balanced version ensures even charging and discharging across all cells, promoting longer battery life.
• ✓Suitable for applications with a starting current below 80A and power consumption below 135W.
• ✓✅ Compact & Lightweight:
• ✓Weighing only 9.3g – 10.3g, it offers easy installation in battery packs.