Wattrae Energy 51.2V 608Ah LiFePO4 Battery for Still FM-X20
Wattrae Energy 51.2V 608Ah LiFePO4 traction battery is engineered for Still FM-X20. It is prepared for lead-acid to lithium conversion projects with matched tray sizing, BMS protection, connector options, and charger support.
Lead-Acid to Lithium Replacement Overview
This 51.2V 608Ah lithium traction battery is positioned for fleets that want to replace flooded or sealed lead-acid batteries without changing the core truck workflow. The conversion should confirm voltage, battery compartment size, connector type, cable direction, counterweight requirement, charger profile, and communication needs before installation.
- Designed for Still FM-X20 and similar industrial electric equipment.
- Supports opportunity charging and lower routine maintenance compared with lead-acid packs.
- Uses integrated BMS protection for over-charge, over-discharge, over-current, temperature, and short-circuit control.
- Can be matched with REMA, Anderson, or project-specific connectors and a compatible lithium charger.
- Tray size, ballast weight, cable outlet, SOC display, and CAN communication can be configured for the conversion project.
Key Specifications
| Product Brand | Wattrae Energy |
|---|---|
| Compatible Equipment Brand | Custom / OEM equipment |
| Application | Still FM-X20 |
| Voltage | 51.2V |
| Capacity | 608Ah |
| Energy | 31.13 kWh |
| Dimensions | 1220*425*780mm / 48.0*16.7*30.7inch |
| Weight | 1100KG/2660lb |
| Cell Chemistry | LiFePO 4 / Prismatic(Lithium Iron Phosphate) |
| Recommended Charger | WTE512608-705 |
| Connector | REMA 160 |
Detailed Specifications
| Model | WTE512608-705 |
|---|---|
| Nominal Voltage | 51.2 V |
| Nominal Capacity (@0.2C) | 608 Ah |
| Nominal Energy | 31.13 kWh |
| Cell Chemistry / Type | LiFePO 4 / Prismatic(Lithium Iron Phosphate) |
| Cell Combination | 2P16S (304 Ah) |
| Recommended Charging Voltage | 58.4 V (max.) |
| Max. Charging Current | 200 A |
| Discharging Cut-off Voltage | 40 V |
| Max. Continuous Discharging Current | 200 A |
| Max. Pulse Discharging Current | 300 A, ≤ 30 s |
| Self-discharge Rate | ≤ 4% in the first month after full charge; ≤ 1% per month thereafter |
| Cycle Life (25 ℃, 0.5C/0.5C, 80% DOD) | ≥ 3500 cycles |
| Dimensions (L×W×H) | 1220*425*780mm or Customized. |
| Weight | ≈ 1100 kg (with counterweight) |
| Communication Interface | CAN; cloud platform features available (remote monitoring, fault logs, SOC). |
| Charge Temperature | 0 ℃ to 55 ℃ (32 ℉ to 131 ℉) |
| Discharge Temperature | -20 ℃ to 60 ℃ (-4 ℉ to 140 ℉) |
| Storage Temperature | 0 ℃ to 45 ℃ (32 ℉ to 113 ℉) |
| Safety Standard | UN38.3, CE, IEC, CB, ISO9001 |
| Water & Dust Resistance | IP54 |
| Application | Still FM-X20 |
| Voltage | 51.2 V |
| Capacity | 608 Ah |
| Energy | 31.13 kWh |
| Dimensions(LxWxH) | 1220*425*780mm / 48.0*16.7*30.7inch |
| Standard Weight | 1100KG/2660lb |
| Design Life | > 10 years |
| Forklift Type | Still FM-X20 |
| Recommended Charger Model | 48V 100A/200A |
| Connector | REMA 160 |
Lead-Acid Conversion Plan
- Record the existing lead-acid battery voltage, capacity, tray dimensions, weight, connector, cable exit direction, and truck model.
- Select a Wattrae Energy lithium pack with the correct system voltage, usable energy, BMS current rating, and required counterweight.
- Confirm charger compatibility, charging voltage, maximum current, connector standard, and any CAN or SOC display requirements.
- Install the battery in the tray, secure cables, verify polarity, test charger handshake, and run a controlled discharge/charge check.
- Train operators on opportunity charging, SOC reading, storage, and fault-code handling.
SEO FAQ
Can this battery replace a lead-acid forklift battery?
Yes, it can be used as a lead-acid replacement when voltage, tray size, weight balance, connector, charger settings, and discharge current are matched to the equipment.
Does the conversion need a new charger?
A lithium-compatible charger is recommended. The charger should match the battery charging voltage, current limit, connector, and BMS communication requirements.
Can the tray size and counterweight be customized?
Yes. For many forklift, pallet truck, reach truck, and tow tractor projects, tray dimensions, ballast weight, connector, cable outlet, and display options can be configured.
What information is needed before ordering?
Provide the truck model, existing lead-acid battery code, voltage, capacity, tray size, battery weight, connector photo, charger details, and operating duty cycle.