Fulbat FL-HU08 · Lawnmower battery 18.5V 2Ah Li-Ion
Specifications
| Brand | FULBAT |
|---|---|
| Part number | FL-HU08 |
| Voltage (V) | 18.50V |
| Capacity (C20) | 2Ah |
| Technology | Li-Ion |
| Length | 138.50mm |
| Width | 81mm |
| Height | 38mm |
| Model | FULBAT Robot Mower |
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Fulbat FL-HU08 18V 2Ah is a compact garden battery: strong cranking reserve and good tolerance to long idle periods between seasons.
Why this lawnmower battery?
- Same JIS referenceas your bike's original — fits first time
- Sealed and ready to useno acid handling, no refills
- Survives winter storageholds charge through long off-season
Voltage
18 V
Capacity
2 Ah
Dimensions
138×81×38 mm
Technology
LI-ION
Model
FULBAT Robot Mower
Mfr. reference
FL-HU08
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Lawn mower battery Fulbat FL-HU08 2Ah 18.5V
18.5VVoltage
2AhCapacity
The Fulbat FL-HU08 battery is rated at 18.5 V, 2 Ah and is designed for ride-on mowers, tillers and garden machinery. It measures 138 × 81 × 38 mm, the format sought by anyone replacing a 2 Ah battery in ride-on mowers.
- Reliable starting after months of winter storage.
- Compact format for small trays.
- Good tolerance to self-discharge.
- Resistant to garden-engine vibration.
What the Fulbat FL-HU08 is for
With 2 Ah, the Fulbat FL-HU08 starts ride-on mowers, tillers and garden machinery and copes with garden-engine vibration.
Dimensions, polarity and mounting
It has external dimensions of 138 × 81 × 38 mm. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.
Fulbat: the maker behind the FL-HU08
French brand Fulbat is a European reference in motorcycle, garden and leisure batteries: compact ranges, clear JIS codes and a consistent quality that workshops know well. All the Fulbat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Technology inside the Fulbat FL-HU08
Within the Fulbat catalogue, the FL-HU08 is the 2 Ah model designed for this application.
Care and maintenance
Disconnect or remove the battery over winter and give it a maintenance charge before storing it. Check the voltage before the first start of the season and clean the terminals.
Manufacturer's warranty
The Fulbat FL-HU08 comes with the manufacturer's official warranty against manufacturing defects. If it fails through a defect within the warranty period, we replace it at no cost to you.
When you get it and how to return it
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 24-48 working hours in mainland Spain and Portugal, 3 to 5 days in the islands and the rest of Europe. Returns are accepted for 14 days if the battery has not been used (free collection on the Iberian mainland). You will receive tracking by email.
BCOM-FULBAT-FL-HU08
Data sheet
- Brand
- FULBAT
- Model
- FULBAT Robot Mower
- Voltage (V)
- 18.50V
- Length
- 138.50mm
- Width
- 81mm
- Height
- 38mm
- Technology
- Li-Ion
- Capacity (C20)
- 2Ah
- Energy (Wh)
- 37Wh
Specific References
- MPN
- FL-HU08
Recommended accessories
How to change the battery
Guide to replace a truck battery in 30-60 minutes. Truck batteries weigh 25-50 kg — we recommend working in pairs and using a carrying strap.
Step 1. Prepare the vehicle
Park on a flat surface, switch off the engine and remove the key. Make sure all lights and electrical accessories are off. Wait 1-2 minutes before starting.
Step 2. Locate the battery
Open the bonnet. The battery is usually in the engine bay, but in many modern cars it may be in the boot or under the passenger seat. Check the manual if you cannot find it.
Step 3. Disconnect the negative (−) terminal
Use the 10 mm wrench to loosen the negative cable nut (black, marked −) and remove the cable from the post. Move it aside so it cannot touch any bodywork.
Step 4. Disconnect the positive (+) terminal
Repeat with the positive cable (red, marked +). Important: never let a terminal touch metal of the car while the other is still connected.
Step 5. Remove the old battery (two people)
Loosen the bottom hold-down clamp. Truck batteries weigh 25-50 kg — lift in pairs with gloves and a carrying strap. Forcing the lift alone risks back injury.
Step 6. Install the new battery
Place the battery in the same orientation as the old one (positive terminal on the same side). Tighten the hold-down clamp firmly.
Step 7. Connect the cables
Connect the positive (+) terminal first, then the negative (−). Tighten the nuts with the wrench until each terminal does not move. Apply anti-spark grease if you have any.
Step 8. Verify the engine starts
Close the bonnet. Start the engine to confirm everything works. On cars with Start-Stop or a BMS, you may need to register the battery via OBD so the alternator applies the correct charging profile.
Frequently asked questions
How do I fit the FL-HU08 model in my truck?
In most trucks it fits in 15-30 minutes with a 10 mm wrench; if the battery is under the seat or in the boot the time can double. See the step-by-step guide on this page. Quick summary: 1) switch off the engine and remove the key; 2) locate the original battery (engine bay, boot or under seat); 3) disconnect the negative (−) terminal first, then the positive (+); 4) loosen the hold-down clamp and remove the old battery; 5) fit the new one in the same orientation — match the polarity shown on the product sheet; 6) connect the positive (+) first, then the negative (−). On trucks with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.
How many years does this battery last?
Expected lifespan of the Fulbat FL-HU08 is 4 to 7 years in regular use (depends on technology and climate). In cold regions it drops slightly due to cold-start stress; in very hot regions it also drops because of electrolyte evaporation. To extend its life: avoid deep discharges (headlights on with engine off), have the alternator checked yearly, and keep the battery clean and properly secured.
What size is this battery?
Dimensions (length × width × height) are 139×81×38 mm — also written as 139x81x38 mm — following the European DIN standard. Always measure the space in your truck before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.
Will the Fulbat FL-HU08 battery fit my truck?
Three options to confirm: 1) enter your number plate in the finder (DGT/DVLA/KBA auto-detect your model and engine); 2) check the "Compatible vehicles" tab on this page, where we list every vehicle verified by our technical team; 3) if you cannot find your model, message us on WhatsApp with brand, model, engine and year — we reply during business hours (Mon–Fri 10:00–13:30 and 16:40–18:00 (Spanish time, CET)). The FL-HU08 typically fits a wide range of European vehicles thanks to its standard DIN case format.
Which batteries are equivalent to the Fulbat FL-HU08?
Directly interchangeable batteries (same dimensions, same polarity, same Ah and CCA) are the OEM equivalents from leading brands: Bosch, Tudor, Exide and, depending on the model, Banner or Yuasa. Exact equivalence depends on technology — an EFB cannot be replaced with a conventional battery in Start-Stop trucks. See the "Equivalents" section to view recommended options at the same performance level.
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