The Tenergy D 3.6V 19Ah Wired Lithium Battery combines high energy density, long cycle life (1,000+ charges), and stable voltage output. Designed for industrial equipment, medical devices, and robotics, it uses LiFePO4 chemistry for enhanced safety and thermal stability. Its wired configuration ensures secure connections in high-vibration environments.
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How Does the Tenergy D 3.6V 19Ah Compare to Other Lithium Batteries?
Unlike standard Li-ion batteries, the Tenergy D 3.6V 19Ah uses LiFePO4, offering higher thermal runaway resistance (up to 270°C) and a flatter discharge curve. It delivers 19Ah capacity at 3.6V, outperforming NiMH equivalents by 30% in energy density. Its cycle life is 3x longer than typical LiPo batteries, with minimal capacity fade after 800 cycles.
In industrial settings, the Tenergy battery maintains 95% capacity retention after 500 cycles at 1C discharge rates, while conventional Li-ion cells drop to 80% under similar conditions. The LiFePO4 chemistry also reduces voltage sag during high-current draws, making it suitable for robotics applications requiring consistent power delivery. For example, automated guided vehicles (AGVs) using this battery show 22% longer operational times between charges compared to standard lithium polymer alternatives.
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| Battery Type | Cycle Life | Energy Density (Wh/kg) | Thermal Stability |
|---|---|---|---|
| Tenergy D 3.6V LiFePO4 | 1,000+ | 90-110 | 270°C |
| Standard Li-ion | 300-500 | 150-200 | 150°C |
| NiMH | 500-800 | 60-120 | 70°C |
What Devices Are Compatible with This Battery?
Compatible applications include:
- Industrial sensors (e.g., pressure monitors)
- Medical equipment (portable oxygen concentrators)
- Robotics (AGV power systems)
- Security systems (CCTV backup)
- Portable lab instruments
Note: Verify voltage tolerances (±0.2V) and discharge rates (max 2C continuous) before integration.
How to Optimize Charging for Maximum Lifespan?
Use CC/CV charging at 3.65V ±0.05V with 0.5C current. Avoid:
- Trickle charging beyond 100% SOC
- Temperatures below 0°C during charging
- Voltage spikes above 4.0V
Balancing cycles every 10 charges extends cell uniformity. Full discharge to 2.5V triggers auto-cutoff to prevent deep discharge damage.
For optimal results, implement a staged charging protocol:
| Stage | Voltage | Current | Duration |
|---|---|---|---|
| Bulk Charge | 3.45V | 0.5C | 2.5 hours |
| Absorption | 3.65V | 0.1C | 45 minutes |
| Float | 3.35V | 0.05C | Indefinite |
Storage at 40% SOC in 15-25°C environments reduces calendar aging effects. Battery management systems (BMS) with temperature compensation adjust charge voltage by -3mV/°C when operating below 20°C.
What Safety Certifications Does This Battery Hold?
Certifications include:
- UL 1642 (cell level)
- UN38.3 (transport)
- IEC 62133-2 (safety)
- CE/RoHS compliance
Third-party testing confirms 200% overcharge tolerance without combustion and IP54 dust/water resistance.
“Tenergy’s use of prismatic LiFePO4 cells in this model addresses a critical gap in mid-power industrial applications. The 19Ah capacity at 3.6V offers a sweet spot between runtime and form factor—something we’ve seen reduce backup system costs by 18% in automated warehouses.”
– Dr. Elena Voss, Power Systems Engineer, Industrial Energy Solutions Group
FAQ
- Q: Does this battery require a special charger?
- A: Yes—use a LiFePO4-specific charger with 3.65V cutoff. Standard Li-ion chargers may undercharge by 0.45V.
- Q: What’s the shelf life when unused?
- A: 5 years at 20°C (68°F) with 40% SOC. Capacity loss is 2-3% annually due to LiFePO4’s low self-discharge (3% monthly).
- Q: Can it power 5V devices?
- A: Only with a boost converter (efficiency loss ~12%). Direct connection risks undervoltage triggers in most 5V systems.