The main functions of backup power supply for mines and backup power supply for solar street lights are to provide continuous power support for key equipment or systems when the main power supply fails to ensure their normal operation.
Backup power supply for mines
For mining, backup power supply usually includes generator sets, battery packs (such as UPS and EPS type battery packs), and possible other energy storage devices. These devices can quickly start and supply power when the main power supply of the mine is interrupted to ensure the safe production and personnel safety of the mine. The selection and design of backup power supply for mining needs to consider the special environment and safety requirements of the mine, such as explosion-proof, waterproof, and dustproof.

Backup power supply for solar street lights
For solar street lights, backup power supply mainly refers to battery packs, which are used to provide stable power output for street lamps when solar panels cannot provide enough power (such as rainy days or nights). The backup power supply of solar street lights needs to have high charging and discharging efficiency, long service life and stable performance to ensure the continuous operation of the street light system.

Why choose NiMH batteries as backup power batteries?
Safety and reliability: Mines and outdoor environments often have high safety risks, so backup power supplies need to have high safety and reliability. NiMH batteries have stable performance and are not prone to dangerous situations such as thermal runaway or explosion, making them suitable for use as backup power supplies.
Continuous power supply capability: In mines, key equipment such as ventilation systems, emergency communication equipment, lighting and monitoring systems require continuous power supply to ensure the safety and normal operation of mines. The high energy density and long life of NiMH batteries can meet the continuous power supply needs of these equipment.
Maintenance convenience: The maintenance cost of mining equipment and solar street lights is high, so backup power supplies need to have low maintenance costs. The long life and low self-discharge rate of NiMH batteries reduce the frequency of battery replacement and maintenance costs.

BPI is the first choice for backup power supplies
BPI backup power supplies are well-known in the industry for their diverse models, sizes, specifications and excellent characteristics. Due to its high safety and wide temperature range, it is suitable for solar street lights, mining equipment, underground backup power and other fields. The following are some models:
F-type battery: usually between 13000~16000mAh, high safety, no risk of explosion or fire, can be used in a wide temperature environment, and battery management and control are simple.
M-type battery: a model sold by only a few companies in the same industry, usually between 18000~26000mAh, high safety, no risk of explosion or fire, can be used in a wide temperature environment, and battery management and control are simple; M-type has higher energy density than F-type, and can reduce weight by about 15% and volume by about 20% at the same power. Its particularity makes Bettery occupy a place in the same industry and become the preferred solution for many backup power supplies.