The LB04 is a 3.2V 4.8Ah LiFePO4 battery pack built from three 18650 cells in parallel, sized to sit inside low-voltage lighting hardware where space is tight and the pack has to stay stable through years of charge and discharge. It is made for lighting manufacturers, distributors and project teams who need a repeatable power source for a fixture they already design or sell, not a one-off consumer replacement.
Voltage and capacity alone tell you very little about whether a 3.2V battery pack for outdoor lighting systems will suit a luminaire. Whether this one works in your product depends on the driver's input window, the load profile of each brightness mode, the charger the fixture already carries, and the space around the battery compartment. We review those four points with you before a sample is built, and the sample travels with the drawing it was built to, so approval and production refer to the same document.
Fixtures that currently run Ni-Cd, Ni-MH or small sealed lead-acid packs are where a LiFePO4 pack is most often considered, because the chemistry holds a comparatively flat voltage through discharge and ages without the memory effect nickel cells are known for. That is a design opportunity, not a drop-in promise: the charging method, the cut-off point and the protection arrangement have to be reviewed for the whole circuit before the change is signed off.
In service the pack does one simple job. It is charged from the luminaire's own charging circuit and discharged into the LED load. Almost everything that decides success sits in the interface around it: the connector, the wire route, the polarity, the heat reaching the cells during a long charge, and the point at which the driver stops drawing current.
| Parameter | Specification |
|---|---|
| Model | Product Model |
| Configuration | Battery Configuration |
| Nominal Voltage | 3.2V |
| Nominal Capacity | 4800mAh |
| Usable Energy | 15.36Wh |
| Internal Resistance | ≤120 mΩ |
| Charging Voltage | 3.65V |
| Standard Charge Current | 960mA |
| Trickle Charge Current | 960mA* |
| Discharge Cut-off Voltage | 2.5V |
| Discharge Current | 3000mA |
| Design Life | 5 years at 55°C |
| Parameter | Value |
|---|---|
| Overall length | 200 ±3 mm |
| Overall width | 21 ±2 mm |
| Overall height | 23 ±2 mm |
| Pack weight | 150 g |
| Connector | According to customer requirements |
| Mating connector and pinout | Agreed for each project and recorded on the approved drawing |
| Charging temperature | 0°C to 60°C |
| Discharging temperature | -20°C to 65°C |
| Storage temperature | -20°C to 60°C |
Charging is where a lighting pack earns or loses its life in the field, and in this size class the charger is almost always the circuit already inside the luminaire. Before the pack is specified, send us the charger or controller model, its output limits, how it terminates the charge, and the window you have to work with, overnight for a mains fixture or a full day of sun for an off-grid one.
A LiFePO4 pack needs a constant-current, constant-voltage profile that stops at the right point. A charger set up for Ni-Cd, Ni-MH or a sealed lead-acid block usually does not, even when the nominal voltage looks close enough to try. We would rather review your existing charger and tell you it is unsuitable than have the pack come back from the field a year later.
The trickle-current entry in the current model data is marked for confirmation, so treat it as something to agree for your configuration rather than a setting to dial in. Ask us for the full charging specification in writing, including termination behaviour, any maintenance charging, and the temperature limits that apply while charging, before you select or set a charger.
Where the fixture runs from a panel, the controller is the charger, and a profile written for a lead-acid block will not treat a LiFePO4 pack correctly even at a similar voltage. As a solar battery pack supplier we would rather see those settings before the pack is built than diagnose them afterwards.
The specification gives you the discharge cut-off voltage, but it does not tell you that over-charge, over-current, short-circuit and temperature protection are all built into the pack, and we will not imply that they are. What sits inside the pack and what stays with your driver, charger and controller is agreed for each build, written into the specification revision, and shown on the sample you test.
Start from the fixture side. Tell us how your charger terminates the charge, whether the driver stops at a low input voltage, whether there is a fuse on the battery lead, and whether anything in the circuit reads temperature. From there we can say plainly which functions the pack carries and which ones your electronics must handle. A charger that keeps pushing current after the pack is full will not be corrected by a discharge cut-off, and a driver that keeps drawing below 2.5 V will pull the cells down even if the cut-off is present.
On the pack side, a protection circuit has to fit inside an envelope that already holds three 18650 cells, and it adds a little to the pack weight. If your first enquiry was quoted without one, adding it later is a dimensional change as well as an electrical one, so re-check the compartment before the drawing is frozen.
We prove the agreed functions on the sample rather than on paper: run the pack into its cut-off under the real load, confirm the charger terminates as expected, and record the result at the temperature the luminaire actually reaches. Anything that depends on a cell-level board, a resettable fuse or a driver feature is named in that record, so both sides know where responsibility sits when a unit is serviced years later.
What applications is this battery pack designed for?
The listing describes lighting and low-voltage backup projects. Confirm electrical, charging, mechanical and environmental compatibility with the complete device before selecting a sample.
Can the connector be customized?
Submit the mating connector, pinout, polarity and cable requirements. Ask for feasibility confirmation and an updated drawing for any agreed interface change.
What charging voltage should be used?
The current table lists 3.65V charging voltage. Confirm the complete charging profile and conditions using the latest model specification, including the marked current entry, before choosing or setting a charger.
Is this battery pack compatible with Ni-Cd or Ni-MH lighting systems?
This is a LiFePO4 battery pack. Compatibility with Ni-Cd or Ni-MH systems must be confirmed by checking voltage, charging conditions and the requirements of the complete system against the latest model specification.
Technical questions reach the people who build the packs. Our engineering group in Shenzhen reviews your device's voltage window, load profile, enclosure space and charger before proposing a configuration; our sample group then builds units so you can validate fit and runtime before production. Cell selection, BMS design and pack assembly stay in-house, with quality checks in process and at final inspection, and a documentation team handling certificates, test reports and shipping papers. When a unit behaves unexpectedly in the field, our engineers help trace the fault and advise on installation and commissioning.
This 3.2V 4.8Ah LiFePO4 battery is intended for lighting and low-voltage backup equipment, with garden and bollard luminaires, emergency and standby lights, solar lamps and small portable work lights as the usual candidates. What matters more than the category is the complete device: driver, charger, compartment and operating temperature have to be checked together before the pack is approved for a fixture. Send us the application and we will review it against the current model data.
Yes. The connector is built to customer requirements. Send the mating connector type, pinout, wire length, gauge and polarity, and we will confirm feasibility and issue an updated drawing for the agreed interface. A connector change moves the drawing revision, so it is settled before the sample is built rather than afterwards.
Charge the pack on a LiFePO4 constant-current, constant-voltage profile that terminates at the charging voltage listed in the current model data for this configuration. What you should not do is keep a charger set up for Ni-Cd or lead-acid because the nominal voltage looks close. Confirm the whole profile with us first, including the current, the termination point and the marked trickle entry, before you select or set a charger.
It is a LiFePO4 pack, so it is not a like-for-like swap for a Ni-Cd or Ni-MH pack. Compatibility comes down to four checks: the charging method and how it terminates, the voltage the driver expects across the full discharge, the physical fit and connector, and the protection arrangement inside the fixture. Fixtures originally built around nickel packs can be converted, but the charging circuit usually has to be reviewed rather than reused as it stands.
The current model data lists a design life of five years at 55 °C. That figure is a design condition describing how the cells are expected to age at elevated temperature. It is not a warranty and not a promise of installed lifetime. Real service life depends on depth of discharge, how the charge terminates, the temperature inside your luminaire and how often the fixture cycles. Run the sample through your own duty cycle at your own ambient temperatures and use that result when you plan replacements.
The configuration lists a discharge cut-off, and any further protection functions are agreed per build rather than assumed across variants. Tell us what your driver and charger already protect against, such as over-discharge, over-charge, short circuit and temperature, and we will confirm which functions sit inside the quoted pack and which stay with the fixture electronics.
