Long WP50-12NE 12V 50Ah AGM Battery (Wheelchair, UPS, Solar)

What is the Long WP50-12NE 12V 50Ah battery?

The Long WP50-12NE is a 12-volt 50-ampere-hour battery with AGM (Absorbent Glass Mat) technology, also known as a sealed VRLA battery. Manufactured by Kung Long Batteries Industrial (Taiwan), one of the world's largest sealed lead-acid battery brands, it is a deep-cycle, high-reliability battery suitable for the most demanding environments.

Being fully sealed, it requires no maintenance, doesn't leak electrolyte at any installation angle and can be placed indoors with no gas hazard. This makes it the most versatile 12V 50Ah battery on the market for both cyclic and standby applications.

Applications of the Long 12V 50Ah AGM battery

The Long WP50-12NE is exactly the model you need for:

• Electric wheelchairs: long autonomy and service life with no maintenance required. It is the most recommended wheelchair battery for its price/quality balance.
• Mobility scooters: compatible with most market models that use 12V 50Ah.
• UPS / uninterruptible power supplies: keeps servers, medical equipment and offices running during power outages.
• Small solar systems: ideal as a 12V 50Ah solar battery for field huts, rural lighting systems, solar-powered security cameras or small caravans.
• Alarm systems and fire panels: reliable backup with long service life.
• Emergency lighting: hospitals, public buildings and commercial premises.
• Small electric golf carts and aerial work platforms: deep-cycle use without maintenance.
• Marine auxiliary applications: bilge pumps, cabin lighting and onboard electronics.

AGM, gel or sealed? Clearing up the confusion

Many customers search for "12V 50Ah gel battery" when they actually need an AGM battery. They are similar but different technologies:

• AGM (Absorbent Glass Mat): the electrolyte is absorbed in a fibreglass separator. This is the technology of the Long WP50-12NE. Excellent discharge performance, long life and balanced price.
• GEL: the electrolyte is in gel form. Better for very frequent deep cycling but more expensive and more sensitive to overcharging.
• Sealed (VRLA): generic term that covers both (AGM and GEL). Both are sealed.

For wheelchairs, scooters, UPS and small solar systems, AGM 12V 50Ah is the optimal choice — and that is exactly what the Long WP50-12NE is.

Key features

• Sealed AGM VRLA technology: maintenance-free, no leaks, installable in any position except inverted
• 12 V nominal voltage · 50 Ah capacity (at 20 h rate)
• Maximum discharge current (5 s): 600 A — high cranking capacity for occasional high-demand uses
• Low internal resistance (~5 mΩ) — high energy efficiency
• Adaptive charging algorithm: cycle use 14.4–15.0 V · float 13.5–13.8 V
• Float service life: up to 5 years at 20 °C
• Exceptional charge retention: 85 % charge after 6 months stored at 20 °C
• F8 terminal (M6 bolt) with recommended torque 7 N·m
• Flame-retardant ABS case (UL94 HB standard, optional V-0)
• Weight: 15.1 kg · Dimensions: 199 × 166 × 171 mm (L × W × H)

How long does a 12V 50Ah AGM battery last? Real service life

The Long WP50-12NE has very different service lives depending on use:

• Float use (UPS, alarms, emergency lighting) at 20 °C: up to 5 years. At 30 °C this drops to around 3 years, at 40 °C to around 2 years. Important in the Canary Islands: install in ventilated spaces, not in hot attics.
• Cyclic use (wheelchair, scooter, small solar):
  • ~200 cycles when discharging to 100 % of capacity
  • ~500 cycles when discharging to 50 % (recommended to extend life)
  • ~1,200 cycles when discharging only to 30 %

Pro tip: never discharge below 50 % when using a wheelchair or scooter. It will last twice as long.

Correctly charging the Long WP50-12NE

To extend battery life, use an intelligent charger that respects the official values:

• Cycle charge (after intensive use): 14.4 – 15.0 V with maximum 15 A current
• Float charge (permanent maintenance): 13.5 – 13.8 V
• Temperature coefficient: -5.0 mV/°C/cell (cycle) and -3.0 mV/°C/cell (float) — a temperature-compensated charger is highly recommended in the Canary Islands

At BateríasCanarias we stock the full Victron Energy range of chargers with temperature compensation for AGM batteries.

Delivery and warranty in the Canary Islands

• 24-72 h delivery to all the islands (Tenerife, Gran Canaria, La Palma, Lanzarote, Fuerteventura, La Gomera, El Hierro)
• Shipping included, no customs duties or extra fees
• 3-year legal guarantee managed directly from our shops in Tacoronte and La Guancha
• In-store pickup available at our physical shop in Tenerife

Frequently asked questions about the Long 12V 50Ah AGM battery

Is the Long WP50-12NE a gel or AGM battery?

It is an AGM (Absorbent Glass Mat) battery, not gel. In the Spanish market "gel battery" is often used colloquially for any sealed battery, but they are technically different technologies. For wheelchairs, scooters, UPS and small solar systems, AGM (this model) is exactly the right technology.

Will it work with my electric wheelchair?

Yes, if your wheelchair uses 12V batteries with 50Ah capacity. It is the most-sold electric wheelchair battery in this format thanks to its reliability and service life. Check the dimensions (199 × 166 × 171 mm) and terminal type (F8, M6 bolt) on your current battery before ordering. Most Invacare, Sunrise Medical, Pride, Vermeiren and similar models use this format.

Can I use it in a small solar system?

Yes, it is an excellent 12V 50Ah solar battery for small systems: field huts, lighting, solar cameras, electric fences, automated irrigation systems or small remote equipment. For medium or large solar systems (>1 kWh/day) we recommend dedicated deep-cycle or lithium batteries.

Can I use it to start a car?

No. The WP50-12NE is a cycle battery (slow, deep discharge), not a starter battery. Car batteries need EFB or flooded technology with very high CCA (cold cranking amps). Although the WP50-12NE delivers a 600 A peak in 5 seconds, it is not designed for the repeated starting and vibration of an automobile.

How many years does a Long 12V 50Ah battery last?

Between 2 and 5 years in float applications (UPS, alarms) depending on ambient temperature, and between 200 and 1,200 cycles in cyclic use (wheelchair, solar) depending on typical depth of discharge. To maximise service life: never discharge below 50 % and keep it in a ventilated area below 25 °C when possible.

How much does the Long WP50-12NE 12V 50Ah weigh?

Approximately 15.1 kg. If you are going to handle it yourself to change a wheelchair battery, factor in the weight.

What warranty does the Long 12V 50Ah battery have when bought in the Canary Islands?

3-year legal guarantee managed directly by BateríasCanarias from our shops in Tenerife. You won't need to ship the product back to mainland Spain — we handle the entire process.