Q-battery 12SEM-135 Semitraction Battery · Battery 135Ah

Mobility battery Q-Battery 12SEM-135 Semitraction Battery 135Ah 12V

The Q-Battery 12SEM-135 with conventional lead-acid technology delivers 135 Ah at 12 V with the cycle life that power wheelchairs, mobility scooters and light electric vehicles demand. Its 349 × 175 × 290 mm and the positive terminal on the right make it the exact replacement for the 135 Ah battery fitted as standard to many power wheelchairs and mobility scooters.

• Sealed AGM/GEL: safe indoors and in transport.
• Good balance of capacity, cranking power and price.
• Approved for air and sea transport (VRLA).
• No maintenance, no water top-ups.

What the Q-Battery 12SEM-135 is for

The Q-Battery 12SEM-135 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 37.80 kg, A-Pole terminals and B0 hold-down.

Size, terminals and hold-down of the Q-Battery 12SEM-135

It has external dimensions of 349 × 175 × 290 mm and weighs 37.80 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 B0 hold-down and A-Pole terminals, the system that anchors and connects it in the vehicle. For a direct replacement, the current battery tray must accept these dimensions and the same terminal layout; otherwise adapters will be needed or the hold-down will change.

The Q-Battery 12SEM-135: Semitraction Battery range and conventional lead-acid technology

The 12SEM-135 is part of the Q-Battery Semitraction Battery range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.

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.

What Q-Battery does differently

Q-Battery specialises in AGM and GEL VRLA batteries for UPS, telecoms, solar and deep cycling, with long-life and tubular-plate series for industrial use. We guarantee that every Q-Battery arrives new, charged and with the manufacturer's full warranty.

Warranty and coverage

The Q-Battery 12SEM-135 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.

Care and maintenance

Recharge the wheelchair or scooter after each use and do not leave it discharged for days: lead sulphates and loses capacity. On batteries with filler caps, check the electrolyte level and top up only with distilled water.

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.