F type large cylindrical NiMH cells, data strictly from official spec sheets. Nominal 1.2V, dimension Φ32.5±0.2mm × H90.5±0.5mm. Two series: Standard (-10~55℃) & Wide Temp (-40~85℃). Standard version 11000/13000mAh, wide temp upgraded 13000mAh. Standard charge 0.1C 16h; standard fast charge 0.3C 4.5h, wide temp fast charge 0.2C 6.5h. Max 1C continuous discharge (wide temp up to 30A). Standard model ≥500 IEC cycles, wide temp upgraded ≥800 cycles. Low internal resistance ≤15mΩ (wide temp ≤6mΩ). Pass short circuit/vibration/drop/low&high temp test. Custom nickel tabs & large industrial battery packs for off-grid storage, mining monitoring, outdoor heavy equipment.

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Full Specifications of F Size Ni-MH Cells (Official Spec Sheet Data)

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Format	Model No.	Rated Capacity(mAh)	Min Capacity(mAh)	Height(mm)	Diameter(mm)	Std Charge Current(mA)	Std Charge Time(h)	Rapid Charge Current(mA)	Rapid Charge Time(h)	Weight(g)	Max Continuous Discharge	Cycle Life(IEC)	Operating Temp Range	Target Application
F	WJ-90F11000	11000	10500	90.5	32.5	1100	16	3300	7	220	11000mA(1C)	≥500	-10℃ ~ 55℃	Ordinary Industrial Backup, Solar Small Storage
F	WJ-90F13000	13000	12500	90.5	32.5	1300	16	3900	7	240	13000mA(1C)	≥500	-10℃ ~ 55℃	General Outdoor Monitoring Equipment
F Wide Temp	WJ-90F13000-WT	13000	12900	90.5	32.5	1300	16	2600	7	249	30000mA(30A)	≥800	-40℃ ~ 85℃	Mining / Cold Region / High Temp Heavy Machinery

Core Performance of F Size Ni-MH Cells (Per Official Spec)

11000~13000mAh Ultra Large Capacity

Largest standard NiMH cylindrical cell for long-duration power supply

Up To 800 IEC Standard Cycles

Wide temp upgraded version reaches 800 cycles, standard ≥500

Dual Fast Charge Solution

Standard 0.3C/4.5h; wide temp 0.2C/6.5h with temp protection

70%+ Capacity Retention After 28 Days

Stable storage performance for long-term inventory & standby devices

Ultra Wide Temp Option -40℃~85℃(MAX)

Custom low/high temp formula for extreme environment projects

Heavy-Duty Safety Structure

Pass short circuit, -40℃ low temp & 85℃ high temp discharge test

Factory Supply & Product Advantages

Main Application Fields

For Extreme Environment Equipment Manufacturers

Wide temp F cell stable discharge -40℃ cold / 85℃ high heat sites
30A max continuous discharge for high-power industrial loads
Ultra low internal resistance ≤6mΩ on wide temp upgraded model
Full low/high temp test reports attached for project bidding

For Energy Storage & Monitoring Wholesalers

13000mAh ultra large capacity cuts pack quantity & assembly cost
Low self-discharge, ideal for long standby monitoring devices
Custom long nickel tabs for large series-parallel battery packs
Complete PPWR, UN38.3, MSDS, CE export documentation set

Wide Application Scenarios For F Size Ni-MH Cells

Off-Grid Small Solar Storage Mining Monitoring Sensors Cold Region Field Equipment High-Temp Industrial Backup Large Portable Searchlight Marine Heavy Power Packs Road Construction Detectors Oilfield Monitoring Devices Long-Term Outdoor Cameras Emergency Large Power Station Heavy-Duty Robotic Equipment Remote Weather Stations

16 Years Professional F Size NiMH Cell Manufacturer

16+ years professional nickel metal hydride vertical integrated manufacturer
Capacity
3 production bases, total 12,000㎡ factory, 200,000 Units Daily OutputCapacity
Cumulative export volume of 500 million units over 16 years
Exclusive automatic production line for large F cylindrical cells
Special high/low temp lab for -40~85℃ wide temp cell testing
Standard & wide temp F cells in stock, fast bulk delivery
Provide original full test spec & discharge curve datasheets
OEM long nickel tabs, shrink tube, large battery pack assembly service
Export industrial large capacity batteries to over 60 countries

Performance Data & Quality Assurance

All Weijiang NiMH cells are 100% tested for capacity, internal resistance and voltage before shipment. Below are representative performance curves and quality parameters for our standard NiMH cells.

Cycle Life: 80%+ capacity after 1000 cycles

Self-Discharge: 84% retention after 6 months @ 20°C

NiMH Discharge Voltage Curves at Different Rates

Discharge Voltage: Stable plateau at 0.2C–2C (D-cell representative)

Parameter	Standard	Test Method
Cycle Life	≥1000 cycles (80% DOD)	0.5C charge / 1C discharge, 25°C
Self-Discharge	≤16% / 6 months @ 20°C	Standard charge, store 6 months, measure
Operating Temp	Charge 0–45°C, Discharge −20–55°C	Environmental chamber test
Internal Resistance	≤30 mΩ (AA cell, typical)	AC milliohm meter @ 1kHz
Capacity Tolerance	±5% of rated capacity	0.2C discharge to 1.0V

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F NiMH Battery

F Size Ni-MH Rechargeable Batteries11000~13000mAh Ultra Large Capacity Cells