Lightwave Lithium Iron Phosphate Battery (LW-LiFe-17.5KW)
The Lightwave LW-LiFe-17.5KW is a 17.5kWh lithium iron phosphate (LiFePO4) battery for solar, hybrid and backup power systems. It stores daytime solar energy for use at night and during outages. It suits businesses, institutions, large households and student hostels that need high-capacity storage in a single unit.
Key Features & Benefits
- 17.5kWh of storage in one unit: The battery stores 17.5kWh, more than three 5kWh batteries combined. As a result, it can carry a shop, office or large home through the evening and overnight. You also manage one unit instead of several smaller ones.
- LiFePO4 safety: Lithium iron phosphate chemistry resists overheating and thermal runaway. Consequently, it is a safer choice for indoor installation in homes, offices and shared buildings.
- Intelligent BMS protection: The built-in battery management system monitors key functions continuously. It protects against overcharging, deep discharging and short circuits, which helps preserve the battery and your connected equipment.
- Long service life: LiFePO4 batteries handle far more charge cycles than lead-acid batteries while keeping their performance. Additionally, the manufacturer backs the LW-LiFe-17.5KW with an 8-year warranty.
- Compact, modular design: The battery is built to fit different installation setups. For instance, it can upgrade an existing solar system or anchor a new one without major rework.
Technical Specifications
Battery & Capacity
| Specification | Value |
|---|---|
| Chemistry | Lithium iron phosphate (LiFePO4) |
| Rated energy | 17.5kWh |
| Nominal voltage | [To be confirmed] |
| Rated capacity (Ah) | [To be confirmed] |
| Usable energy | Approx. 14kWh at 80% depth of discharge (assumed – see notes) |
Performance
| Specification | Value |
|---|---|
| Max. charge current | [To be confirmed] |
| Max. discharge current | [To be confirmed] |
| Cycle life | [To be confirmed] |
| Operating temperature | [To be confirmed] |
Protection
| Specification | Value |
|---|---|
| Battery management system | Built-in intelligent BMS |
| Protections | Overcharge, deep discharge, short circuit |
| Thermal stability | Resistant to overheating and thermal runaway |
Communication & Compatibility
| Specification | Value |
|---|---|
| Communication ports | [To be confirmed] |
| Compatible inverter brands | [To be confirmed] |
| Solar integration | Works with solar power systems |
Physical & Warranty
| Specification | Value |
|---|---|
| Design | Compact, modular |
| Weight | [To be confirmed] |
| Dimensions | [To be confirmed] |
| Warranty | 8 years (manufacturer listing) |
| EAN | 5049805401044 |
Use Cases & Applications
For Business
A 17.5kWh battery supports business operations through long outages and after sunset. For example, an office with ten computers, networking, lighting, CCTV and a fridge might draw about 1,000W. At 80% usable capacity, the battery could support that load for roughly 12–13 hours after inverter losses.
It works well for:
- Offices and co-working spaces: Run computers, internet and lighting through a full working day without a generator.
- Supermarkets and retail shops: Keep POS systems, lighting and refrigeration running during extended outages.
- Clinics, pharmacies and schools: Maintain lighting, computers, cold storage and security systems.
- Small industrial setups: Support workshop equipment and office loads from stored solar energy.
- Solar installers: Build large hybrid or off-grid systems around a single high-capacity battery.
For Students
This battery suits student hostels, large shared houses and campus facilities. For instance, a hostel floor with ten laptops, Wi-Fi, lighting and a shared fridge draws about 600W. At 80% usable capacity, the battery covers that for roughly 21 hours. As a result, residents can study and stay connected through overnight outages.
Frequently Asked Questions
Will it work with my inverter?
Check that your inverter’s battery voltage matches the battery’s [voltage – to be confirmed]. For communication, confirm that your inverter supports the battery’s [communication protocol – to be confirmed]. Our team can check compatibility before you order.
How long will it power my devices?
Multiply 17.5kWh by the usable percentage (about 80%), giving roughly 14,000Wh. Divide by your load in watts, then subtract 5–10% for inverter losses. For example, a 2,000W load runs for roughly 6–6.5 hours.
How long does the battery last?
LiFePO4 batteries typically last thousands of cycles, far more than lead-acid. The rated cycle life for this model is [to be confirmed]. The manufacturer also offers an 8-year warranty.
How is this different from the LW-LiFe-15KW?
The LW-LiFe-17.5KW stores about 2kWh more than the 15.36kWh LW-LiFe-15KW. Choose the 17.5KW when you need the extra runtime. Compare voltage, current and communication specs once confirmed.
How does it compare to lead-acid batteries?
Lead-acid batteries are usually discharged only to about 50% to protect their lifespan. Therefore, matching this battery’s usable energy with lead-acid would take a much larger bank. That bank would also need more space and regular maintenance.
Important Notes (Merchant Verification Before Publishing)
- Very limited official specs: Lightwave’s product page for this model gives only capacity, general features, warranty and EAN. Voltage, Ah, current, cycle life, communication ports, inverter list, temperature range, weight and dimensions are all unpublished. Fill in every [To be confirmed] placeholder before publishing.
- Datasheet: The official PDF datasheet is image-based and could not be text-extracted. It likely contains the missing specs, so please check it directly.
- Voltage: Lightwave’s other large lithium batteries (10KW and 15KW) are 51.2V units, but this page does not state a voltage. Do not assume 51.2V until confirmed.
- Capacity unit: Lightwave’s page describes the capacity as “17.5KW”. This listing uses 17.5kWh, the correct unit for stored energy. Confirm the exact figure (17.5kWh vs a rounded value such as 17.92kWh).
- Usable energy and runtimes: The 80% depth-of-discharge figure is assumed from the rest of the Lightwave range. Update the runtime examples once the rated DoD is confirmed.
- Mounting type and parallel expansion: Not stated. Confirm whether the unit is floor-standing or wall-mounted, and whether it supports parallel connection.
- Display/app: Not listed. Do not claim an LCD, app or remote monitoring unless confirmed.
- Included accessories: Confirm whether communication cables, battery cables and mounting hardware are included.
- Local warranty: Confirm that the 1-year warranty is honoured through the Kenyan distributor, along with any cycle or usage conditions.
Available at Novelty Technologies Solutions
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