Shenzhen BAK Power Battery Co., Ltd.

BAK cylindrical cells cover the 18650, 21700 and the large-format 4680/4695/46110 full-tab families. Several material systems are used, including high-nickel with silicon, NCM and LMFP. They are aimed at power tools, two-wheelers, smart home devices, portable energy storage and traction batteries, and offer high capacity, high power, low internal resistance thanks to the full-tab design, high safety and a wide temperature range.

Typical capacity spans 2.0-6.5Ah (about 2.0-3.5Ah for 18650, 5.0-6.5Ah for 21700, about 27Ah for 4680); nominal voltage 3.55-3.6V; internal resistance 6-20mΩ max; maximum discharge rate 3C-5C; cycle life 500-700 cycles at 80%; operating temperature -30 to 70 °C depending on model.

• Power tools
• Garden tools
• Two-wheeled electric vehicles
• Electric scooters
• Intelligent robots
• Robot vacuum cleaners
• Portable energy storage
• Smart home
• Traction batteries

Square aluminium-shell LFP cells offered in capacities from 60 to 345Ah. They deliver a very long cycle life, high energy density and excellent low-temperature behaviour, and are produced on fully automated prismatic aluminium-case lines for energy-storage and traction duty.

Capacity 60/85/100/150/230/314/345Ah; rated voltage 3.2V; charge cut-off 3.65V; discharge cut-off 2.5V above 0 °C and 2.0V at or below 0 °C; cycle life above 10000 cycles at 0.5P/0.5P; dimensions grow with capacity (314Ah: 71.7 × 174.0 × 204.6mm); compliant with UL/UN/IEC/GB-T.

• Residential energy storage
• Telecom base stations
• Home storage
• Portable storage
• Data-centre storage
• Commercial and industrial storage

Prismatic sodium-ion cells built on a NaxMO4 polyanion system. They stand out for outstanding low-temperature behaviour, excellent rate capability, low cost and a very long cycle life. Capacities from 50 to 170Ah cover base-station backup, residential storage and small traction applications.

Capacity 50/75/150/170Ah; rated voltage 3V; charge cut-off 3.55V; discharge cut-off 1.5V above 0 °C and 1.2V at or below 0 °C; cycle life above 10000 cycles at 0.5C/0.5C; dimensions 50.0 × 160.8 × 115.2mm and similar; compliant with UL/UN/IEC/GB-T.

• Telecom base stations
• Residential energy storage
• Small electric vehicles
• Home storage

Prismatic aluminium-case lithium manganese iron phosphate cells. They combine the inherent safety of LFP with a higher voltage plateau and greater energy density, are available from 100 to 314Ah, and target passenger cars and home storage.

Capacity 100/314Ah; rated voltage 3.65V; charge cut-off 4.2V; discharge cut-off 2.5V above 0 °C and 2.0V at or below 0 °C; cycle life above 2000 cycles at 0.5C/0.5C; dimensions 50.0 × 160.8 × 115.2mm and similar; compliant with UL/UN/IEC/GB-T.

• Passenger cars
• Home storage

A portfolio of polymer lithium-ion cells covering high-safety, high-energy, wide-temperature, high-power and solid-state variants in pouch or custom formats. Capacity runs from 5000mAh to 68Ah and the chemistry includes NCM with LFMP and graphite systems, serving two-wheelers, 3C consumer electronics and portable devices.

Capacity 5000mAh-68Ah (pouch types such as the H48x/Uxx/Gxx series); energy density about 230Wh/kg; discharge rate 1C-3C; cycle life 2000 cycles at 70% at room temperature depending on model; custom dimensions supported.

• Two-wheeled electric vehicles
• 3C consumer electronics
• Smart wearables
• Portable devices
• Energy storage

A family of home energy storage products that includes low-voltage and high-voltage stacked units, rack-mounted and wall-mounted models, balcony photovoltaic systems and battery packs. They are built on LFP cells and automotive-grade pack technology and support parallel expansion and intelligent BMS management.

Nominal voltage 48-409.6V; capacity 100-150Ah per unit; total energy from 5.12kWh; parallel expansion supported; protection rating IP20-IP54; communication RS485/RS232/CAN; operating temperature -20 to 60 °C.

• Home energy storage
• Residential photovoltaics
• Balcony photovoltaics
• Backup power

Backup power systems for telecom base stations. They use prismatic aluminium-case LFP cells and automotive-grade packs, and come with a BMS, directional explosion-proof valves and multiple CAN/RS485/RS232 communication interfaces for multi-unit parallel operation.

Nominal voltage 51.2V; rated capacity 100/150/200Ah; total energy 5.12/7.68/10.24kWh; maximum charging current 100A; protection rating IP20; parallel expansion supported; communication RS485/RS232/CAN.

• Telecom base stations
• Telecommunication backup power
• Data centres

Cabinet-type integrated storage solutions for commercial and industrial sites, spanning 200/215/225kWh units as well as the 832V314Ah and FB-CESS ranges. They emphasise high safety, a high degree of integration and remote intelligent management, with an SOC detection error below 3%.

Rated capacity 200.7-225kWh; system configuration 224S1P; cell capacity 280/304/314Ah; rated voltage 716.8V; continuous charge and discharge at 0.5C; IP54; air cooling; Ethernet/RS485/CAN.

• Commercial and industrial energy storage
• Industrial park energy storage
• Peak shaving and valley filling

Containerised energy storage station systems that integrate 20-foot and 40-foot cabinets, with up to 5.4MWh per container. The system supports continuous 1C charge and discharge and an SOC detection error below 3%, which makes it suitable for grid-side and shared storage projects.

Rated capacity 3.0-5.4MWh; rated voltage 1228.8V (3.0MW example); system configuration 384S9P; cell 280Ah; continuous 0.5C charge and discharge; IP54; air or liquid cooling; Ethernet/RS485/CAN.

• Large-scale energy storage stations
• Grid-side energy storage
• Shared energy storage