Cycle Life
The LiFePO4 Cell range is published at more than 2000 cycles with 80% capacity remaining at 100% DOD.
26650 LiFePO4 cell 3.2V 3300mAh
Single cylindrical rechargeable 26650 LiFePO4 cell 3.2V 3300mAh with long cycle life for LED lighting and solar street light.
Category: LiFePO4 Cell
Product Overview
26650 LiFePO4 Cell 3.2V 3300mAh For Lighting
Size: 26.5*65.5mm. Model: IFR26650.
Key Benefits
Stated Electrical Data
Nominal voltage 3.2V, typical capacity 3300mAh. The complete parameter table is published below, not summarised.
Built-in Protection
Automatic protection for over-charge, over-discharge, over-current and over-temperature, with internal cell balancing.
Working Range
Operating temperature is published per state. Charge: 0~45℃; Discharge: -10~60℃.
Built To Order
Capacity, arrangement, case, terminal, cable, connector and custom logo are all specified by the customer. Dimensions are made according to the device's request.
Application Scenarios
Application: solar lamps, solar street light etc.
Who It Is For
- Pack assemblers who wind their own modules
- Storage integrators buying prismatic cells by the pallet
- Lighting and instrument makers who need a specific cylindrical size
Problems It Solves
- Cell data sheets that hide the cycle life condition
- Mixed cell batches that will not balance in a series string
- Bank designs stuck because no published cell fits the enclosure
Specifications
26650 LiFePO4 Cell Parameter
| Item | Rating | Note |
|---|---|---|
| 1.1 Capacity | Typical: 3300mAh | Discharge: 0.2CmA |
| Min.: 3200mAh | ||
| 1.2 Nominal Voltage | Average 3.2V | |
| 1.3 Discharge Cut-off Voltage | 2.0V | |
| 1.4 Charge Current | 1650mA | Standard Charge |
| 1.5 Charge Voltage | 3.65V | |
| 1.6 Charge Time | Approx 4h | |
| 1.7 Max. Charge Current | 3300mA | |
| 1.8 Continuous discharge current | 1650mA | |
| 1.9 Max. discharge current | 3.3A | 1C |
| 1.10 Weight | Approx 85g | |
| 1.11 Operating Temperature | Charge: 0~45℃ | |
| Discharge: -10~60℃ | ||
| 1.12 Storage Temperature | <1 month: -20~45℃ | Recommended storage temperature: 20℃, at the shipment state |
| <3 month: -20~35℃ |
Data sheet published by Sunder Battery for this model.
Comparison With Other Products In This Range
The 26650 LiFePO4 cell 3.2V 3300mAh is one line of the range below. Compare the capacity, dimension and maximum discharge current before deciding, because a pack sized on capacity alone is often the wrong pack.
| Model | Nominal voltage (V) | Nominal Capacity (mAh) | Dimension D*H (mm) | Life Cycles (DOD 80%) | Max. charge voltage (V) | Cut-off discharge voltage (V) | Weight (g) |
|---|---|---|---|---|---|---|---|
| IFR18500 | 3.2 | 850 | 18.5*50.2 | ≥2000 | 3.65 | 2.00 | 30 |
| IFR18650 | 3.2 | 1400 | 18.5*65.3 | ≥2000 | 3.65 | 2.00 | 45 |
| IFR18650 | 3.2 | 1500 | 18.5*65.3 | ≥2000 | 3.65 | 2.00 | 45 |
| IFR26650 | 3.2 | 3000 | 26.5*65.3 | ≥2000 | 3.65 | 2.00 | 85 |
| IFR26650 | 3.2 | 3200 | 26.5*65.3 | ≥2000 | 3.65 | 2.00 | 88 |
| IFR26650 | 3.2 | 3500 | 26.5*65.3 | ≥2000 | 3.65 | 2.00 | 90 |
| IFR32600 | 3.2 | 4000 | 32.5*60.5 | ≥2000 | 3.65 | 2.00 | 129 |
| IFR42110 | 3.2 | 10000 | 42.5*110.5 | ≥2000 | 3.65 | 2.00 | 350 |
Table published by Sunder Battery for this product family.
Customization Options
Sunder is an OEM and ODM manufacturer. The list below is what is decided by the customer rather than by us.
- Series and parallel arrangement to reach the voltage and capacity you need
- Case, terminal and cable length to match the equipment it replaces
- Connector fitted to your mating part
- Custom logo and label
- Dimensions made according to the device's request
What we need from you. Voltage, capacity or run time, peak current, the space
available, the connector on your board and the operating temperature range. A drawing or the pack you use now
answers most of these at once.
Use Guide
Charge with CC then CV
Charge at constant current, normally 0.2C to 0.5C, until the cell reaches 3.65V, then hold that voltage until the current tails off. At pack level that is 3.65V.
Respect the charge floor
Charge between 0℃ and 45℃. Charging a frozen pack is the most common way an outdoor battery is damaged, and it is a controller setting.
Do not rely on the protection board
The board is a backstop against faults, not a charging strategy. Set the charger correctly first.
Store around 20℃
Store in the shipment state at roughly 20℃. The storage window per duration is published in the parameter table.
Questions About The 26650 LiFePO4 cell 3.2V 3300mAh
What are the nominal voltage and capacity of the 26650 LiFePO4 cell 3.2V 3300mAh?
Nominal voltage 3.2V and typical capacity 3300mAh. The full parameter table is published on this page.
How many cycles does it give?
The LiFePO4 Cell range is published at more than 2000 cycles with 80% capacity remaining at 100% DOD.
What charge voltage should I use?
3.65V, charged constant current then constant voltage. The normal charge current is 0.2C to 0.5C and the maximum is 1C.
What does it weigh?
Approximately 85g. The dimension and weight for every model in the range are in the model list on this page.
Can you build this to our own size and connector?
Yes. The charge and discharge current can be customised and the dimension is made according to the device's request. Custom logo is available.
Can I get a sample first?
After price confirmation, you can request our battery samples to test.
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