The Tenergy 36V 3800mAh NiMH Battery 11826 is a high-capacity rechargeable battery designed for devices requiring sustained power, such as robotics, medical equipment, and industrial tools. It offers 36 volts of stable output, a 3800mAh capacity for extended runtime, and a durable NiMH chemistry resistant to memory effect. Its modular design allows for flexible configurations, making it ideal for specialized applications.
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How Does the Tenergy 36V 3800mAh NiMH Battery Work?
The battery uses nickel-metal hydride (NiMH) chemistry, which balances energy density and safety. It delivers 36V through a series of interconnected cells, providing stable voltage for high-drain devices. Unlike lithium-ion, NiMH batteries are less prone to overheating and can handle partial discharges without significant capacity loss, making them reliable for cyclic use in industrial and commercial settings.
Each NiMH cell in the Tenergy 11826 provides 1.2V, meaning 30 cells are connected in series to achieve the 36V output. This configuration ensures consistent energy delivery even under heavy loads. The modular design allows individual cells to be replaced if they degrade, reducing long-term maintenance costs. Advanced separators and electrolytes within the cells minimize self-discharge to just 15-20% per month, outperforming many traditional NiMH models. While its energy density (100-140 Wh/kg) is lower than lithium-ion alternatives, the chemistry’s thermal stability makes it safer for use in enclosed spaces or high-temperature environments. A built-in voltage monitoring system prevents over-discharge, extending the battery’s 500+ cycle lifespan.
What Devices Are Compatible with the Tenergy 36V 3800mAh Battery?
This battery powers devices requiring 36V input, including cordless power tools, electric scooters, robotics, backup power systems, and medical devices like portable oxygen concentrators. Its modular design allows customization for voltage-specific applications, though users must verify compatibility with their equipment’s voltage and current requirements to avoid damage.
| Device Category | Examples | Power Draw |
|---|---|---|
| Industrial Tools | Drills, Grinders | 25-40A |
| Medical Equipment | Oxygen Concentrators | 5-8A |
| Electric Mobility | Scooters, Wheelchairs | 15-30A |
How Long Does the Tenergy 36V 3800mAh Battery Last Per Charge?
At 3800mAh, the battery provides approximately 3–8 hours of runtime, depending on the device’s power draw. High-drain tools may deplete it faster, while low-power sensors can extend usage. It supports 500+ charge cycles with proper maintenance, retaining 80% capacity after 300 cycles. Regular full discharges help maintain longevity.
What Are the Charging Requirements for This Battery?
A compatible NiMH charger with 36V output and 1–2A current is required. Charging takes 4–6 hours, with built-in overcharge protection. Avoid using lithium-ion chargers, as they can damage the cells. For optimal performance, store the battery at 50% charge in cool, dry conditions when not in use.
Why Choose NiMH Over Lithium-Ion for High-Voltage Applications?
NiMH batteries like the Tenergy 11826 are safer for high-temperature environments, less flammable, and more resistant to voltage sag under load. They also tolerate partial charging without capacity degradation, making them preferable for industrial equipment where consistent performance and safety are critical, despite lithium-ion’s higher energy density.
In automotive manufacturing, for example, NiMH batteries power robotic arms that require frequent start-stop cycles. Lithium-ion’s sensitivity to deep discharges would lead to premature failure in such scenarios. NiMH also meets stringent safety certifications for medical devices, where fire risks from lithium-ion thermal runaway are unacceptable. While lithium-ion dominates consumer electronics, industries prioritize NiMH’s predictable degradation curve—capacity decreases gradually rather than abruptly failing. Additionally, NiMH’s lower per-cycle cost (estimated at $0.03/cycle vs. lithium-ion’s $0.05/cycle) makes it economical for heavy-use applications over a 5-year lifespan.
Can This Battery Be Repaired or Recycled?
Individual cells can be replaced if damaged, but disassembly requires technical expertise. Recycling is possible through certified e-waste centers, as NiMH batteries contain recoverable metals like nickel and rare earth elements. Never dispose of in household trash due to environmental risks.
Expert Views
“The Tenergy 11826 fills a niche for high-voltage NiMH solutions where lithium-ion’s risks are prohibitive. Its modularity and cycle life make it a workhorse for OEMs in robotics and healthcare. However, users must prioritize proper charging practices to maximize its lifespan.” — Industrial Battery Systems Analyst
Conclusion
The Tenergy 36V 3800mAh NiMH Battery 11826 is a robust, adaptable power source for demanding applications. Its balance of safety, capacity, and durability makes it a standout choice for professionals needing reliable energy without lithium-ion’s complexities.
FAQ
- Is the Tenergy 11826 Battery Water-Resistant?
- No, it lacks an IP rating. Avoid exposure to moisture.
- Does It Work in Sub-Zero Temperatures?
- Yes, but capacity drops by 20–30% below -10°C. NiMH performs better in cold than lithium-ion.
- Can I Use It for Solar Storage?
- Not recommended. NiMH’s self-discharge rate (15–20% monthly) makes it inefficient for long-term solar storage compared to lithium or lead-acid.