Gotion 33140 lifepo4 15ah 3.2V Cylindrical Lithium iron phosphate battery
Grade A New LiFePO4 Battery Cell, High Quality;
100% inspected and packed very well, 2-Year Warranty;
Gotion 33140 is a premium cylindrical lithium iron phosphate cell, also known as the Gotion 33140 lifepo4 battery with nominal voltage of 3.2V and 15Ah capacity. This reliable 33140 battery features over 2000 charge cycles and low internal resistance ≤8mΩ. As a stable lifepo4 battery, it supports 1C continuous discharge and 5C peak current with outstanding safety performance. The compact φ33*140mm design simplifies battery pack assembly. This Gotion battery is widely adopted for low-speed vehicles, portable energy storage and backup power systems requiring long-cycle and safe lifepo4 power solutions.
1. Cell Specifications

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Battery Model
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LI-33140T-15
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Battery Type
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LiFePo4 rechargeable battery
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Nominal Voltage
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3.2V
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Nominal Capacity
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15Ah
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Charge Voltage
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3.65V
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Discharge Cut-off Voltage
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2.0V
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Max Charge Current
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0.5C
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Max Discharge Current
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5C
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Internal Resistance
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≤8mΩ
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Charge Temperature
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0-55℃
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Discharge Temperature
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-30~60℃
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Storage Temperature
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10~35℃
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Cycle Life
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≥2000 Times, DOD at 80%
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Battery Size
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φ33*140mm
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Battery Weight
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267g
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Warranty
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3 Years
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2. Why Cylindrical Cells?
Cylindrical lithium-ion cells remain a competitive mainstream format thanks to robust mechanical structure, mature automated manufacturing, outstanding cell consistency and inherent cooling channels after packaging.
Enhanced Structural Safety
Cylindrical lithium-ion cells adopt spiral winding construction. The round shape evenly distributes internal pressure, and rigid metal casing accommodates built-in PTC and CID safety devices to prevent deformation and overheating.
Consistent Performance & Scalable Production
Standard sizes including 18650, 21700 and 4680 etc enable fully automated manufacturing. Superior cell consistency optimises the reliability of battery modules and packs.
Efficient Thermal Management for High-Rate Operation
Natural gaps between cells form cooling channels after assembly, effectively mitigating hot spots under high-rate charging and discharging conditions.
Flexible Modular Integration
Adjustable series-parallel configurations support custom battery pack designs for electric vehicles, e-bikes, power tools and stationary energy storage systems.
Controllable Thermal Propagation Risk
Individual cells carry moderate capacity. Energy released during failure is limited, making thermal runaway easier to contain than large-format prismatic cells.
3. Customer Review3. Customer Review
Every acknowledgment from clients fuels NOGIBattery's development. Our team stays dedicated to supplying dependable lithium cells for all partners.

4. Customer FAQ
Q: What does Grade A cylindrical cell mean?
A: Grade A cells are original high-quality cell passing strict factory inspection; With full capacity, low internal resistance, stable performance, and consistent manufacturing standards, ensuring reliable performance for battery packs.
Q: What information is needed to select the right cylindrical cell?
A: Key factors include application, required capacity, discharge rate, voltage, operating temperature, cycle life, and battery pack design.
Q: Are cylindrical lithium-ion cells safe?
A: Yes. Qualified cylindrical cells enjoy uniform pressure distribution. Built-in PTC & CID offer basic safety protection. With proper BMS and thermal layout, potential hazards can be well managed during operation.
Q: What factors affect cylindrical cell lifespan?
A: Battery lifespan depends on charging conditions, operating temperature, discharge rate, storage conditions, and the quality of the Battery Management System (BMS).
Q: Why choose cylindrical cells for commercial battery projects?
A: Cylindrical cells offer mature manufacturing technology, stable supply, excellent consistency, competitive cost, and flexible battery pack integration.
Contact us: Wechat/WhatsApp: +8613528488114 Email: sales@nogibattery.com