Q-battery 12SEM-80 · Caravan battery 12V 80Ah
Specifications
| Brand | Q-battery |
|---|---|
| Part number | 12SEM-80 |
| Voltage (V) | 12 |
| Capacity (C20) | 80Ah (c20) |
| Technology | Lead-acid |
| Length | 278.00 cm |
| Width | 175.00 cm |
| Height | 190.00 cm |
| Weight | 19.50 Kgs |
€164.60
VAT included
Q-battery 12SEM-80 12V 80Ah is a leisure battery for campers, motorhomes and caravans. Designed to power the entire interior kit (fridge, heater, water pump, USB, LED lighting) for several days off-grid, with no need to plug into a campsite hookup.
Why this caravan battery?
- Real off-grid autonomyno campsite hookup needed
- Lasts the whole seasonhandles daily discharges without capacity loss
- Powers it all at oncefridge, water pump, LED and USB without issues
Voltage
12 V
Capacity
80 Ah
Dimensions
278×175×190 mm
Technology
Lead-acid
Polarity
Positive on the right
Weight
19,5 kg
Model
SEMITRACTION BATTERY
Mobility battery Q-Battery 12SEM-80 Semitraction Battery 80Ah 12V
12VVoltage
80AhCapacity
19.50kgWeight
The Q-Battery 12SEM-80 with conventional lead-acid technology delivers 80 Ah at 12 V with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 278 × 175 × 190 mm and the positive terminal on the right make it the exact replacement for the 80 Ah battery fitted as standard to many power wheelchairs and mobility scooters.
- Approved for air and sea transport (VRLA).
- No maintenance, no water top-ups.
- Sealed AGM/GEL: safe indoors and in transport.
- Good balance of capacity, cranking power and price.
What the Q-Battery 12SEM-80 is for
With 80 Ah, the Q-Battery 12SEM-80 offers the daily range that power wheelchairs, mobility scooters and light electric vehicles need, with a sealed construction that is safe indoors. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 19.50 kg, A-Pole terminals and B13 hold-down.
The Q-Battery 12SEM-80: Semitraction Battery range and conventional lead-acid technology
The Semitraction Battery is the Q-Battery range the 12SEM-80 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.
The conventional lead-acid battery remains the most widespread technology thanks to its balance of capacity, cranking current and price. Well maintained and kept charged, it offers years of reliable service in vehicles without Start-Stop.
Dimensions, polarity and mounting
It has external dimensions of 278 × 175 × 190 mm and weighs 19.50 kg. The positive terminal on the right decides which side the cables end up on: it is the detail that causes most buying mistakes, so check it before ordering. It uses a B13 hold-down and A-Pole 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 Q-Battery does differently
The Q-Battery catalogue runs from small alarm batteries to large traction monoblocs, always with sealed, maintenance-free technology. We guarantee that every Q-Battery arrives new, charged and with the manufacturer's full warranty.
Care and maintenance
On batteries with filler caps, check the electrolyte level and top up only with distilled water. 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 Q-Battery 12SEM-80 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
Orders placed before 6:00 pm with the battery in stock ship the same day. Delivery in mainland Spain and Portugal takes 24-48 working hours; for the Balearic and Canary Islands and the rest of the European Union allow 3 to 5 working days. You have 14 days to return an unused battery; in mainland Spain and Portugal collection is free. We email you the tracking number as soon as the parcel ships.
BCOM-Q-BATTERY-12SEM-80
Data sheet
- Brand
- Q-Battery
- Reference
- 12SEM-80
- Model
- SEMITRACTION BATTERY
- Voltage (V)
- 12
- Length
- 278.00 cm
- Width
- 175.00 cm
- Height
- 190.00 cm
- Weight
- 19.50 Kgs
- Technology
- Lead-acid
- Terminal layout
- Positive terminal on the right
- Terminal type
- A-Pole
- Hold-down
- B13
- Capacity (C20)
- 80Ah (c20)
Specific References
- MPN
- 12SEM-80
Comparison: Q-battery BATTERY-12SEM-80 vs equivalents
The Q-battery BATTERY-12SEM-80 is interchangeable with these equivalent references: LFD75 (Varta).
| Product | Specifications | Technology | Price |
|---|---|---|---|
Q-battery
BATTERY-12SEM-80
This battery
|
12V 80Ah | Lead-acid | €164.60 |
Varta
LFD75
|
12V 75Ah 650A | Lead-acid | €250.70 |
Equivalences verified by our technical team: same dimensions, polarity, capacity and CCA. Official manufacturer warranty on every option.
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
How is the Q-battery 12SEM-80 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.
How many years does this battery last?
Expected lifespan of the Q-battery 12SEM-80 is 4 to 6 years in regular device use without 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 dimensions of the Q-battery 12SEM-80 battery?
Dimensions (length × width × height) are 278×175×190 mm — also written as 278x175x190 mm and correspond to the European L3 case size — 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 12SEM-80 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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