Shenzhen Betterpower Battery Co., Ltd.
Shenzhen Betterpower Battery Co., Ltd.
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High-Performance Batteries for Global Industries

From nimh to li-ion and energy storage, we provide reliable power solutions for consumer electronics, medical devices, and industrial applications.

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Explore Wide Range of BPI Batteries

NiMH Batteries
NiMH Batteries
BPI NiMH batteries use patented explosion-proof safety valves, are safe and short-circuit-free for 20 years, and are available in full sizes of A/AA/AAA/SC/C/D/F/9V.
NiMH Batteries
Lithium Polymer Batteries
Lithium Polymer Batteries
BPI's Lithium Polymer Batteries deliver high energy density, 10C–20C discharge, wide temperature resistance (–20°C to 85°C), long cycle life, lightweight design, and safe aluminum-laminated packaging.
Lithium Polymer Batteries
LiFePO4 Batteries
LiFePO4 Batteries
BPI’s LiFePO4 Batteries combine long lifespan, high performance, and advanced safety, offering over 2000 cycles (up to 6000 at 80% DOD). Supporting fast bidirectional charging, they use automotive-grade cells with BMS protection and operate reliably from –20°C to 60°C.
LiFePO4 Batteries
Battery Energy Storage System
Battery Energy Storage System
BPI portable Battery Energy Storage System is equipped with automotive A-class battery cells for stable performance, featuring multiple outputs, fast charging, Bluetooth control, and other models. It combines ultra-large capacity, high compatibility, and advanced safety to redefine outdoor power freedom.
Battery Energy Storage System
1.5V Lithium Batteries
1.5V Lithium Batteries
BPI's 1.5V rechargeable batteries deliver consistent, powerful, and eco-friendly performance. They maintain a constant 1.5V output throughout use, ensuring devices operate at peak efficiency without voltage drop.
1.5V Lithium Batteries
Battery Packs
Battery Packs
BPI Battery Packs deliver high-performance cylindrical and prismatic aluminum-cased solutions for power tools and energy storage, using automotive-grade cells and BMS, supporting 12.8V–72V with 18650, 21700, and prismatic formats.
Battery Packs
Special Batteries
Special Batteries
These Special Batteries are designed to operate from –40°C to 70°C, meeting the demands of harsh environments including extreme cold and high heat.
Special Batteries
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Recent Popular BPI Batteries

Ultra-Low Self-Discharge Ni-MH Batteries Ultra-Low Self-Discharge Ni-MH Batteries
The charge retention rate at room temperature is over 70% after 10 years.
AAAA Ni-MH Batteries AAAA Ni-MH Batteries
The dimensions of the AAAA nickel-metalhydride (NiMH) battery are 7.5-8.2 mm indiameter, 41.5-42.5 mm in length, and 300mAh in capacity. lt provides long-lastingenergy for small electrical gadgets and is bothpowerful and compact.
Standard Li-Po Batteries Standard Li-Po Batteries
A reliable, cost-effective single-cell battery solution that delivers balanced performance for a variety of devices, including Bluetooth speakers and handheld scanners.
High-Temp Li-Po Batteries High-Temp Li-Po Batteries
Exceptional high-temperature performance with 97.6% discharge efficiency at 80°C, while maintaining 86.2% discharge efficiency at -10°C.
Low-Temp Li-Po Batteries Low-Temp Li-Po Batteries
Even at -30°C, it can retain more than 70% of its capacity, providing powerful power for aerospace, polar research and other applications.
AAA/AA Type-C Series Lithium Batteries AAA/AA Type-C Series Lithium Batteries
With a 1.5V output voltage, it is durable, compact, and provides excellent performance for a variety of small electronic devices.
C-Type NiMH Explosion-Proof Battery C-Type NiMH Explosion-Proof Battery
Has a diameter of 25.0–25.5 mm, a height of 48.5–50.0 mm, and a capacity between 2,600 and 5,500 mAh. Applications for it include mining equipment, lighting systems, electric windows, and more.
M-Type Ni-MH Batteries M-Type Ni-MH Batteries
BPI M-type nickel-metal hydride batteries have an ultra-high storage capacity and provide longer-lasting power support for devices.
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FAQs About BPI Batteries

01

What are the safety characteristics of NiMH batteries?

BPI's NiMH batteries are engineered for exceptional safety through advanced design and materials. Using nickel–metal hydride cell technology, some models feature flame-retardant shells to prevent fire spread. The cylindrical structure with optimized N/P ratios and welded electrodes ensures durability and stability. Many batteries include triple protection—BMS, charger, and cell safeguards—plus built-in overcurrent and temperature monitoring. They undergo rigorous overcharge, short-circuit, crush, and puncture tests without risk of fire or explosion. With wide temperature adaptability, explosion-proof designs, and certifications like UL, CE, and UN38.3, BPI’s NiMH batteries deliver reliable, secure performance even under extreme conditions.

BPI's NiMH batteries are engineered for exceptional safety through advanced design and materials. Using nickel–metal hydride cell technology, some models feature flame-retardant shells to prevent fire spread. The cylindrical structure with optimized N/P ratios and welded electrodes ensures durability and stability. Many batteries include triple protection—BMS, charger, and cell safeguards—plus built-in overcurrent and temperature monitoring. They undergo rigorous overcharge, short-circuit, crush, and puncture tests without risk of fire or explosion. With wide temperature adaptability, explosion-proof designs, and certifications like UL, CE, and UN38.3, BPI’s NiMH batteries deliver reliable, secure performance even under extreme conditions.

02

What capacities are available for NiMH batteries?

BPI's NiMH batteries are available in a wide range of capacities to meet diverse power needs. From small 5A-4A (200–300 mAh) and AAA (600–800 mAh) cells for compact devices, to AA (1000–1800 mAh) and 9V (250 mAh) batteries for household electronics, BPI offers versatile options. Larger sizes like SC(1300–3000mAh), C(2600–5500mAh), D(2600–11000mAh), F(10000–17000mAh), and M(20000–25000 mAh) provide high energy for industrial or professional equipment. Custom battery packs are also available to meet specific application requirements, ensuring optimal performance across various devices and usage scenarios.


03

What is the operating temperature range of low-temperature NiMH batteries?

BPI's low-temperature NiMH batteries feature a wide operating range from –40°C to 90°C, maintaining over 50% discharge efficiency even at –40°C. They support fast charging and are ideal for automotive systems, special robots, and mining backup power. For harsher environments, BPI's low-temperature polymer batteries operate from –40°C to 50°C, achieving up to 92% discharge efficiency and supporting charging at –10°C. With advanced cold-resistant electrolytes, explosion-proof technology, and durable design, both series ensure reliable performance in extreme conditions such as polar expeditions, military drones, and outdoor instrumentation.


04

Do NiMH batteries support explosion-proof functions?

Yes. BPI's NiMH batteries are designed with advanced explosion-proof features to ensure maximum safety. They use nickel–metal hydride technology combined with patented explosion-proof caps, sealing rings, and flame-retardant shells. The cylindrical structure, welded electrodes, and optimized N/P ratio enhance stability and overcharge resistance. Built-in overcurrent protection, temperature monitoring, and a triple safety system—BMS, charger, and battery protection—prevent short circuits and overheating. Even under abuse tests like overcharge, short-circuit, crush, or puncture, the batteries do not ignite or explode. This multi-layered, prevention-first design guarantees safety for demanding and high-risk applications.


05

How is the storage performance of low self-discharge NiMH batteries?

BPI's low self-discharge NiMH batteries deliver outstanding storage performance and long-term stability. Even after 10 years at room temperature, they retain over 70% of their capacity; after one year, capacity retention remains above 80%, with an annual self-discharge rate below 20%. They operate reliably across –40°C to 60°C, maintaining over 50% discharge efficiency in extreme cold. With recovery capability even at 0.8V, these batteries ensure extended usability. Using advanced Japanese Sanyo technology and A2B7-type hydrogen storage alloys, BPI achieves excellent charge retention and durability under high temperature and humidity conditions.


06

Is custom-made mining battery supported?

Yes. BPI fully supports custom-made mining batteries, offering tailored power solutions designed for extreme safety and reliability. We provide both explosion-proof NiMH and lithium battery options, featuring patented dual explosion-proof technology (protective cap + high-temperature sealing ring) that passes 150°C and 120A short-circuit tests. The batteries operate stably from –40°C to 80°C, adapting to harsh underground environments. All products meet UL and CE certifications and carry product liability insurance. BPI also offers OEM, ODM, and fully customized services, including battery design, BMS configuration, and structure optimization to match specific mining equipment needs.


07

Features about our our high-rate discharge and high-voltage platform NI-MH batteries.

BPI's high-rate discharge and high-voltage platform NiMH batteries deliver powerful, reliable, and safe performance for demanding applications. They support continuous discharge rates up to 25C and peak currents up to 160A, providing strong instant power for tools and hybrid systems. Fast charging up to 10C minimizes downtime, while a wide –40°C to 90°C operating range ensures stable performance in extreme temperatures. With cycle life exceeding 750 cycles—and up to 3000 for power models—plus patented explosion-proof technology and triple safety protection, these batteries combine durability, safety, and efficiency with low self-discharge (<20% per year).


08

Which industrial application scenarios are our NI-MH batteries suitable for?

BPI's industrial NiMH batteries are ideal for demanding and safety-critical applications. They are widely used in explosion-proof equipment such as mining lamps, radios, handheld terminals, monitoring devices, and robots for petrochemical and mining industries. They also power special industrial tools, drones, mapping instruments, and backup systems. In automotive and energy storage fields, they support T-BOX/OBD devices and emergency power systems. Additionally, they serve high-end tools like laser rangefinders and smart lawn mowers. With UL and CE certifications, diverse capacity options, and OEM/ODM customization, BPI provides reliable, safe, and flexible power solutions for industrial applications.


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