The Tenergy 10.8V 2200mAh Li-Ion Rechargeable Battery is a high-performance power solution for devices requiring stable voltage and long runtime. With lithium-ion technology, it offers lightweight design, low self-discharge, and up to 500+ charge cycles. Ideal for power tools, medical equipment, and robotics, it balances energy density, safety, and cost-effectiveness compared to NiMH or LiPo alternatives.
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What Are the Key Specifications of the Tenergy 10.8V 2200mAh Battery?
This battery operates at 10.8V (12V nominal) with 2200mAh capacity, delivering 23.76Wh energy. It uses lithium-ion cells with a 1C discharge rate and weighs 250g. Dimensions are 90mm x 35mm x 21mm. It supports 500+ cycles at 80% capacity retention and includes built-in protection against overcharge, over-discharge, and short circuits.
Which Devices Are Compatible with This Battery?
Common applications include cordless power tools (drills, saws), portable medical devices (infusion pumps, monitors), RC vehicles, drones, and robotics. It’s compatible with brands like Black+Decker, Makita, and custom OEM systems requiring 10.8V-12V input. Always verify device voltage tolerances before use.
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How Does It Compare to NiMH or LiPo Batteries?
| Feature | Tenergy Li-Ion | NiMH | LiPo |
|---|---|---|---|
| Energy Density | 2200mAh | 1800mAh | 2500mAh |
| Weight | 250g | 400g | 200g |
| Safety | High | Medium | Low |
What Safety Features Does the Battery Include?
The battery integrates a PCB with overcharge protection (cuts off at 12.6V), over-discharge protection (8.4V cutoff), and short-circuit resistance. Cells use thermal runaway prevention via ceramic separators. Avoid puncturing, exposing to temperatures above 60°C, or immersion in water to maintain safety.
Advanced safety mechanisms include cell voltage balancing to prevent individual cell overcharging. The battery management system (BMS) actively monitors temperature fluctuations through a built-in NTC thermistor. In extreme conditions, the BMS triggers a failsafe shutdown within milliseconds. Users should regularly inspect battery casing for swelling – a key indicator of potential cell failure. For industrial applications, pairing with a fire-resistant battery bag is recommended for added protection.
How to Maximize the Battery’s Lifespan?
Store at 40-60% charge in cool (15-25°C), dry environments. Use a 12.6V Li-ion charger with 1A max current. Avoid full discharges; recharge at 20% remaining capacity. For long storage, recharge every 3 months. Calibrate monthly by fully discharging/charging once to maintain accurate capacity readings.
| Storage Condition | Capacity Loss/Month |
|---|---|
| 25°C at 40% charge | 2% |
| 40°C at full charge | 15% |
| -10°C at any charge | 0.5% |
Implement partial charging cycles (20-80%) instead of full cycles to reduce electrode stress. When using fast chargers, limit sessions to 3 consecutive charges before allowing a cool-down period. For batteries in daily use, perform deep discharge cycles quarterly to recalibrate the fuel gauge. Avoid charging immediately after high-load applications – let cells cool to ambient temperature first.
What Are Common Troubleshooting Steps?
If the battery fails to charge, check contacts for debris or corrosion. Test charger output with a multimeter (should read 12.6V). Reset protection circuits by connecting to a charger for 10 minutes. If runtime drops below 50%, perform a full discharge/charge cycle. Persistent issues may indicate cell degradation requiring replacement.
“The Tenergy 10.8V 2200mAh model exemplifies cost-efficient Li-ion engineering. Its balance of cycle life and safety features makes it a go-to for mid-drain applications. However, users should prioritize OEM chargers—third-party units often lack precise voltage regulation, accelerating cell wear.” — Industrial Power Systems Analyst
FAQs
- How Long Does It Take to Charge Fully?
- With a 1A charger, full charge takes 2.5 hours from 0%. A 2A charger reduces it to 1.25 hours, but may shorten overall lifespan due to heat.
- Can It Be Used in Series/Parallel Configurations?
- Yes, but cells must be matched in voltage/capacity. For series (higher voltage), use identical batteries. Parallel setups (higher capacity) require a balancer to prevent uneven discharge.
- Is It Interchangeable with 12V Lead-Acid Batteries?
- No. Lead-acid batteries have different discharge curves and lower energy density. Use only in devices rated for 10.8V-12V Li-ion input.