Specifications
| Brand | Q-battery |
|---|---|
| Part number | 12GEL-51 |
| Voltage (V) | 12 |
| Capacity (C20) | 51Ah (c20) |
| Technology | GEL |
| Length | 276.00 cm |
| Width | 175.00 cm |
| Height | 190.00 cm |
| Weight | 24.00 Kgs |
Q-battery 12GEL-51 12V 51Ah is a traction battery for industrial electric vehicles: forklifts, pallet trucks, elevating platforms, cleaning machines (scrubbers) and golf buggies. Built for deep discharges and 8-hour continuous work cycles.

Designed for scrubber-dryers, sweepers and industrial cleaning machines, the Q-Battery 12GEL-51 from the GEL Traction Battery range offers 51 Ah of deep-cycle capacity with GEL technology. Its 276 × 175 × 190 mm and the positive terminal on the right make it the exact replacement for the 51 Ah battery fitted as standard to many scrubbers and sweepers.
The Q-Battery 12GEL-51 is designed for scrubber-dryers, sweepers and industrial cleaning machines: full working shifts with deep discharges and daily recharging. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 24 kg, A-Pole terminals and B13 hold-down.
The 12GEL-51 is part of the Q-Battery GEL Traction 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.
In a GEL battery the electrolyte is gelled with silica: it is fully sealed, cannot spill and tolerates deep discharge very well. It is the preferred technology in electric mobility, marine service and heavy-cycling applications.
In terms of format, the Q-Battery 12GEL-51 measures 276 × 175 × 190 mm (length × width × height) and weighs 24 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.
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. All the Q-Battery batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Recharge the machine at the end of each shift and avoid repeated full discharges. GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte.
The Q-Battery 12GEL-51 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.
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.
Data sheet
Specific References
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| Brand | Q-battery |
|---|---|
| Manufacturer range | GEL TRACTION BATTERY |
| Manufacturer part number (MPN) | 12GEL-51 |
| Also known as | 12GEL51 · 12GEL 51 |
| EAN-13 barcode | 4250889611804 |
| European case size (EN 50342-2) | L3 |
| Dimensions (length × width × height) | 276 × 175 × 190 mm (276x175x190) |
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.
Yes, this model is a GEL battery: sealed lead-acid where the electrolyte is in gel form. It tolerates deep discharges very well and is ideal for cyclic use (solar, motorhomes, electric wheelchairs, motorcycles). Requires a GEL-specific smart charger — max charge voltage ~14.1 V (vs 14.4-14.7 V for AGM). Lifespan 6-10 years.
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.
Expected lifespan of the Q-battery 12GEL-51 is 6 to 10 years in cyclic use (marine, caravan, solar) with controlled discharges. 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.
Dimensions (length × width × height) are 276×175×190 mm — also written as 276x175x190 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.
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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