Long WP1236W · Stationary UPS battery 12V 9Ah AGM

Batería Long WP1236W 9Ah 36Wh - 1
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Specifications

BrandLONG
Part numberWP1236W
Voltage (V)12
Capacity (C20)9Ah (c20)
TechnologyAGM
Length151.00 cm
Width65.00 cm
Height102.00 cm
Weight2.70 Kgs
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€19.20
VAT included
Quantity

  • 24-48h delivery
  • 14-day returns
  • Secure payment
  • +11,800 reviews

Brand LONG Reference WP1236W

Urgent battery installation service Home installation within 1 to 3 hours
Málaga With our urgent home battery installation service, you buy your battery and within approximately 1 to 3 hours a qualified technician will install it comfortably at your home.

Check service availability in your area

Order today and we will dispatch tomorrow (Wednesday) by urgent courier so you receive it comfortably at home on Thursday before 14:00

Service available in mainland Spain and Portugal

4,76· 53 reseñas
4,76/5★★★★★53 reviewsVerified purchases
  • ★★★★★Customer: Compré 2 baterías Long de 9Ah para mi SAI y todo perfecto. El mejor precio de la web y entrega al día siguiente.
See all 53 reviews

Long WP1236W 12V 9Ah is a stationary battery for backup power systems: UPS, alarms, telecom and emergency lighting. Long float-life under permanent charge and instant response to mains outages with no noticeable voltage drop.

Why this stationary battery?

  • Instant responsewhen the mains drop, no voltage dip
  • Long life under 24/7 chargeoptimised for permanent service
  • Compatible with your systemexisting UPS units and alarm control panels
Voltage
12 V
Capacity
9 Ah C20
Dimensions
151×65×102 mm
Technology
AGM
Weight
2,7 kg
Model
WP WATT Series
Logo Long

Stationary battery Long WP1236W WP WATT Series 9Ah 12V

12VVoltage
9AhCapacity
2.70kgWeight

Designed for UPS, alarms, telecoms and emergency lighting, the Long WP1236W from the WP WATT Series range offers 9 Ah with AGM technology on permanent float charge. It replaces the original battery without adaptation in UPS, alarm and emergency systems with a 151 × 65 × 102 mm format: same 9 Ah capacity.

  • AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
  • Long float life under permanent charge.
  • Sealed and gas-free: suitable for cabinets and offices.
  • Maintenance-free for its whole service life.

Will it fit your current battery tray?

The Long WP1236W is made in the 151 × 65 × 102 mm format and weighs 2.70 kg. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

What the Long WP1236W is for

With 9 Ah, the Long WP1236W gives your UPS or emergency system the autonomy it needs. Replace all the batteries in the set at once. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 2.70 kg.

The Long WP1236W: WP WATT Series range and AGM technology

Within the Long catalogue, the WP WATT Series series groups the references designed for this use. The WP1236W is the 9 Ah model of that family, with the same performance as its siblings in other sizes.

In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.

Long: the maker behind the WP1236W

Long (Kung Long Batteries) is one of the world's largest manufacturers of sealed VRLA batteries. Its AGM and GEL series for UPS, mobility, alarms and cycling are found in equipment worldwide as original equipment. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

Warranty and coverage

The Long WP1236W 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.

How to make it last longer

Replace all the batteries in the set at once and avoid environments continuously above 25 °C. Check the float voltage of the UPS or charger: a voltage that is too high shortens the life of a sealed battery.

Shipping, delivery and returns

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-LONG-WP1236W

Data sheet

Brand
LONG
Reference
WP1236W
Model
WP WATT Series
Voltage (V)
12
Length
151.00 cm
Width
65.00 cm
Height
102.00 cm
Weight
2.70 Kgs
Technology
AGM
EAN
4260030442591
Capacity (C20)
9Ah (c20)
Energy (Wh)
36

Specific References

EAN13
4260030442591
MPN
WP1236W
4,76/5
★★★★★53 reviews
Verified purchases
Latest verified reviews
★★★★★Customer
11/04/2026
Excelenta batería para SAI

Compré 2 baterías Long de 9Ah para mi SAI y todo perfecto. El mejor precio de la web y entrega al día siguiente.

Codes and references Long WP1236W

Brand Long
Manufacturer range WP WATT Series
Manufacturer reference (MPN) WP1236W
EAN-13 barcode 4260030442591
Dimensions (length × width × height) 151 × 65 × 102 mm (151x65x102)

Recommended accessories — complement the Long WP1236W with a charger or tester

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.

⏱ 10-15 min🛠 Tools: Screwdriver or small wrench (3-5 mm typical) · Protective gloves
  1. 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.

  2. 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.

  3. Step 3. Disconnect the negative (−) first

    With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.

  4. 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.

  5. 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.

  6. 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.

  7. 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.

  8. 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 Long WP1236W an AGM battery and what are the benefits of AGM?

Yes. The WP1236W from Long 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 WP1236W 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 Long WP1236W battery last?

Expected lifespan of the Long WP1236W 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 WP1236W model?

Dimensions (length × width × height) are 151×65×102 mm — also written as 151x65x102 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.

Which batteries are equivalent to the Long WP1236W?

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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