Fullriver HC35 · Wheelchair battery 12V 35Ah 438A AGM
Specifications
| Brand | FULLRIVER |
|---|---|
| Part number | HC35 |
| Voltage (V) | 12 |
| Capacity (C20) | 35Ah (c20) |
| Technology | AGM |
| Length | 196.00 mm |
| Width | 131.00 mm |
| Height | 167.00 mm |
| Weight | 56.00 Kgs |
€247.95
VAT included
4,78/5★★★★★12 reviewsVerified purchases
- ★★★★★Javier Torres:
Recomiendo esta web, hasta te ayudan a instalar la batería. Gracias!
- ★★★★★Enrique Arias:
Hice el pedido de la batería un martes a las 7 y me llegó el miércoles a las 3
- ★★★★★Martin Blanco:
Si tienes dudas con la instalación puedes llamar y te asesoran.
Fullriver HC35 12V 35Ah 438A is a deep-cycle battery for wheelchairs and mobility scooters, optimised to be discharged and recharged daily down to 80 % DOD without losing range.
Why this wheelchair 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
35 Ah
Cold cranking
438 A
Dimensions
196×131×167 mm
Technology
AGM
Weight
56 kg
Model
FULLRIVER HC
Mobility battery Fullriver HC35 HC 35Ah 438A 12V
12VVoltage
35AhCapacity
438ACold cranking
56kgWeight
Designed for power wheelchairs, mobility scooters and light electric vehicles, the Fullriver HC35 from the HC range offers 35 Ah of deep-cycle capacity with AGM technology. It measures 196 × 131 × 167 mm, the format sought by anyone replacing a 35 Ah battery in power wheelchairs and mobility scooters.
- Standard replacement format for wheelchairs and scooters.
- Thousands of useful cycles over its lifetime.
- Designed to be discharged and recharged daily without losing capacity.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
What the Fullriver HC35 is for
The Fullriver HC35 is designed for power wheelchairs, mobility scooters and light electric vehicles. Wheelchairs and scooters normally use two identical batteries in series: replace them together. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 56 kg and M6 terminals.
The Fullriver HC35: HC range and AGM technology
The HC is the Fullriver range the HC35 belongs to: it shares the same construction and quality criteria with the rest of the series, and varies in capacity and format to suit each vehicle.
AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.
Will it fit your current battery tray?
It has external dimensions of 196 × 131 × 167 mm and weighs 56 kg. It uses 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 Fullriver does differently
With its own plants and a catalogue focused on high-performance AGM, Fullriver is a familiar brand in power wheelchairs, boats and photovoltaic systems that need thousands of cycles. We guarantee that every Fullriver arrives new, charged and with the manufacturer's full warranty.
Usage and maintenance tips
Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators. Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity.
Manufacturer's warranty
The Fullriver HC35 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
Order before 6:00 pm with stock available and it leaves today: mainland Spain and Portugal receive it in 24-48 working hours, the islands and the rest of the EU in 3 to 5 days. You have 14 days to return it if it has not been installed, with free collection on the mainland, and shipment tracking by email.
BCOM-FULLRIVER-HC35
Data sheet
- Brand
- FULLRIVER
- Reference
- HC35
- Model
- FULLRIVER HC
- Voltage (V)
- 12
- Length
- 196.00 mm
- Width
- 131.00 mm
- Height
- 167.00 mm
- Weight
- 56.00 Kgs
- Technology
- AGM
- Terminal type
- M6
- Cold cranking amps (EN)
- 438
- Capacity (C20)
- 35Ah (c20)
Specific References
- MPN
- HC35
4,78/5
Verified purchasesLatest verified reviews
★★★★★Javier Torres
28/06/2026Gracias por su ayuda
Recomiendo esta web, hasta te ayudan a instalar la batería. Gracias!
★★★★★Enrique Arias
11/01/2026Entregada en tiempo
Hice el pedido de la batería un martes a las 7 y me llegó el miércoles a las 3
★★★★★Martin Blanco
29/12/2025Trato y ayuda inmejorable, gracias
Si tienes dudas con la instalación puedes llamar y te asesoran.
★★★★★Pablo Gil
09/12/2025Me ayudaron a instalar la batería
Recomiendo esta web, hasta te ayudan a instalar la bateria. Gracias!
Recommended accessories
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.
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.
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.
Step 3. Disconnect the negative (−) first
With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.
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
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.
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.
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.
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
Is the HC35 model AGM? What does this technology offer?
Yes. The HC35 from Fullriver uses AGM (Absorbent Glass Mat) technology: a sealed lead-acid battery where the electrolyte is absorbed in a glass-fibre mat. It withstands more charge/discharge cycles than a conventional one, handles heat better and is the required technology for devices with advanced Start-Stop and regenerative braking. Expected lifespan: 5-8 years under normal conditions.
How do I fit the HC35 model in my device?
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.
How long does the Fullriver HC35 battery last?
Expected lifespan of the Fullriver HC35 is 5 to 8 years in mild-climate device use with Start-Stop. 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 HC35 model?
Dimensions (length × width × height) are 196×131×167 mm — also written as 196x131x167 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.
What are the equivalents of the HC35 model?
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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