Fulbat FPG12-85 · Mobility scooter battery 12V 85Ah GEL

Mobility scooter battery Fulbat FPG12-85 12V 85Ah GEL
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  • Mobility scooter battery Fulbat FPG12-85 12V 85Ah GEL

Specifications

BrandFULBAT
Part numberFPG12-85
Voltage (V)12V
Capacity (C20)85Ah
TechnologyGEL
Length306mm
Width168mm
Height214mm
Terminal layoutPositive left
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Fulbat FPG12-85 12V 85Ah is a deep-cycle battery optimised for repeated discharges down to 80 % DOD and thousands of life cycles. Ideal when the battery discharges and recharges daily rather than just cranking the engine (mobility scooters, backup systems, golf, pallet trucks).

Why this deep-cycle battery?

  • Daily cycling without wearhandles deep discharges without losing capacity
  • Sealed AGM/GELno maintenance, no risk of spills
  • Thousands of useful cyclesover its full lifetime
Voltage
12 V
Capacity
85 Ah C20
Dimensions
306×168×214 mm
Technology
GEL
Polarity
Positive on the left
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Mobility battery Fulbat FPG12-85 85Ah 12V

12VVoltage
85AhCapacity

Designed for power wheelchairs, mobility scooters and light electric vehicles, the Fulbat FPG12-85 offers 85 Ah of deep-cycle capacity with GEL technology. It measures 306 × 168 × 214 mm and the positive terminal on the left, the format sought by anyone replacing a 85 Ah battery in power wheelchairs and mobility scooters.

  • Designed to be discharged and recharged daily without losing capacity.
  • GEL technology: gelled electrolyte, fully sealed and maintenance-free.
  • Standard replacement format for wheelchairs and scooters.
  • Thousands of useful cycles over its lifetime.

Size, terminals and hold-down of the Fulbat FPG12-85

In terms of format, the Fulbat FPG12-85 measures 306 × 168 × 214 mm (length × width × height). The positive terminal on the left decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses BOLT-M6 terminals, the system that anchors and connects it in the vehicle. 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.

What the Fulbat FPG12-85 is for

The Fulbat FPG12-85 is the usual replacement in power wheelchairs, mobility scooters and light electric vehicles. Recharge after each use and avoid leaving it discharged for days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has BOLT-M6 terminals.

Technology inside the Fulbat FPG12-85

The FPG12-85 is one of the Fulbat references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue.

GEL technology fixes the acid in a solid gel. That removes maintenance and leaks and gives very long cycle life, in exchange for slightly slower recharging and lower peak current than an AGM.

Fulbat: the maker behind the FPG12-85

Fulbat has manufactured in France since 1978 and specialises in motorcycles and light vehicles. Its catalogue is short and clear, covers almost the whole fleet and works only with sealed, leak-free batteries. All the Fulbat batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

Official warranty

The Fulbat FPG12-85 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.

How to make it last longer

Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.

Delivery times and returns

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-FPG12-85

Data sheet

Brand
FULBAT
Model
FULBAT FPC Cyclic
Voltage (V)
12V
Length
306mm
Width
168mm
Height
214mm
Technology
GEL
Terminal layout
Positive left
Terminal type
BOLT-M6
Capacity (C20)
85Ah

Specific References

MPN
FPG12-85

Recommended accessories — complement the Fulbat FPG12-85 with a charger or tester

How to change the battery

Guide to replace a cyclic battery (12V 4-30Ah) for UPS, mobility scooter, alarm or backup device. Estimated time 10-15 minutes. Important: discharge residual voltage before handling.

⏱ 10-15 min🛠 Tools: Screwdriver or small wrench (3-5 mm typical) · Protective gloves
  1. Step 1. Power off and unplug the device

    Unplug the device (UPS, scooter, alarm) and leave it off for at least 30 seconds to discharge residual capacitor voltage. Work on an insulating surface.

  2. Step 2. Locate the battery compartment

    Usually under the seat (mobility scooter/wheelchair), in the rear module of the UPS, or behind a side panel with screws. Check the device manual for unusual models.

  3. Step 3. Disconnect the negative (−) first

    With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.

  4. 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.

  5. Step 5. Remove the old battery

    Typical weight 1-15 kg depending on capacity. Many cyclic batteries are AGM/GEL — keep them upright. Do NOT invert the battery: even sealed, residue may exist.

  6. Step 6. Fit the new battery

    Same orientation and type (AGM, GEL or flooded). Polarity must match the device, not a chassis (this is not a car). Make sure terminals do not touch metal parts of the compartment.

  7. Step 7. Connect the positive (+) first

    On cyclic devices the order is reversed compared to cars: positive (+) first, negative (−) afterwards. Tighten without forcing — the plastic terminal housing of cyclic batteries damages easily.

  8. Step 8. Initial charge before first use

    Cyclic batteries ship at 60-80%. Before first use, connect the device charger for 8-12 hours (or use an AGM/GEL smart charger if available). This avoids short cycles and extends lifespan.

Frequently asked questions

How is the Fulbat FPG12-85 battery installed in the vehicle?

In most devices 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 devices with Start-Stop or BMS, register the battery via OBD so the alternator applies the correct charging profile.

What is the service life of the FPG12-85 model?

Expected lifespan of the Fulbat FPG12-85 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 are the measurements of the FPG12-85 model?

Dimensions (length × width × height) are 306×168×214 mm — also written as 306x168x214 mm — following the European DIN standard. Always measure the space in your device before buying: even one extra millimetre can prevent the hold-down clamp from closing. The height shown includes the terminals.

Which interchangeable batteries are there for this one?

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 devices. See the "Equivalents" section to view recommended options at the same performance level.


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