Trojan 22-AGM · Solar battery 12V 50Ah AGM

Battery TROJAN 22-AGM 12V 50Ah AGM
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  • Battery TROJAN 22-AGM 12V 50Ah AGM

Specifications

BrandTROJAN
Part number22-AGM
Voltage (V)12
Capacity (C20)50Ah (c20)
Capacity (C5)43Ah (c5)
TechnologyAGM
Length228.00 mm
Width139.00 mm
Height204.00 mm
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4,72· 41 reseñas
4,72/5★★★★★41 reviewsVerified purchases
  • ★★★★★Jorge Lorenzo: Tenía varias opciones en mente y me ayudaron a elegir la más correcta
  • ★★★★★Cesar Arias: Esta web es la mejor, encontré lo que buscaba, llegó en menos de 24hrs y cuando llamé por una duda que tenía me ayudaron con la instalación
  • ★★★★Jose Luis Carmona: MRW me entregó en menos de un día. Increíble
See all 41 reviews

Trojan 22-AGM 12V 50Ah is a solar battery designed for PV systems with daily charge/discharge cycles. Tolerates extreme temperatures well, with low self-discharge during winter shutdowns or between stays at vacation homes.

Why this solar battery?

  • Designed for solar systemsoptimised for daily charge/discharge cycles
  • Handles extreme temperaturesin technical rooms or outdoor installs
  • Minimal self-dischargewhen left idle over winter or holidays
Voltage
12 V
Capacity
50 Ah C20
Dimensions
228×139×204 mm
Technology
AGM
Weight
18 kg
Model
TROJAN AGM
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Solar battery Trojan 22-AGM 50Ah 12V

12VVoltage
50AhCapacity
18kgWeight

For off-grid photovoltaic installations and storage systems, the Trojan 22-AGM stores 50 Ah with AGM technology through daily charge and discharge cycles. Its 228 × 139 × 204 mm make it the exact replacement for the 50 Ah battery fitted as standard to many off-grid PV systems.

  • Compatible with common MPPT and PWM controllers.
  • Maintenance-free in off-grid installations.
  • Low self-discharge during the darker months.
  • AGM: faster recharging and better cycle resistance than a conventional battery.

What the Trojan 22-AGM is for

The Trojan 22-AGM is designed for off-grid photovoltaic installations and storage systems. Size the capacity so as not to discharge more than 50% daily and you will greatly extend its life. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 18 kg and 15 terminals.

Size, terminals and hold-down of the Trojan 22-AGM

It has external dimensions of 228 × 139 × 204 mm and weighs 18 kg. It uses 15 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.

Technology inside the Trojan 22-AGM

Within the Trojan catalogue, the 22-AGM is the 50 Ah model designed for this application.

AGM (Absorbent Glass Mat) technology seals the electrolyte in glass microfibre. The result is a maintenance-free battery that is highly vibration-resistant and able to withstand deep discharges that would ruin a classic lead-acid battery.

Trojan: the maker behind the 22-AGM

Trojan Battery is the world reference in deep-cycle batteries: golf carts, cleaning machines, aerial platforms and solar systems rely on its T2 technology and longevity. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.

Manufacturer's warranty

The Trojan 22-AGM 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

Size the installation so as not to discharge the battery more than 50% daily and set the controller to the battery technology. Charge with a charger that has an AGM mode: it limits the voltage and protects the glass-fibre separators.

Delivery times and returns

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-TROJAN-22-AGM

Data sheet

Brand
TROJAN
Reference
22-AGM
Model
TROJAN AGM
Voltage (V)
12
Length
228.00 mm
Width
139.00 mm
Height
204.00 mm
Weight
18 Kgs
Technology
AGM
Terminal type
15
Capacity (C20)
50Ah (c20)
Capacity (C5)
43Ah (c5)

Specific References

EAN13
8404653001506
MPN
22-AGM
4,72/5
★★★★★41 reviews
Verified purchases
Latest verified reviews
★★★★★Jorge Lorenzo
06/05/2026
Te asesoran gratis

Tenía varias opciones en mente y me ayudaron a elegir la más correcta

★★★★★Cesar Arias
23/01/2026
Gracias por ayudarme con la instalación

Esta web es la mejor, encontré lo que buscaba, llegó en menos de 24hrs y cuando llamé por una duda que tenía me ayudaron con la instalación

★★★★★Jose Luis Carmona
23/12/2025
Entrega eficaz

MRW me entregó en menos de un día. Increíble

Codes and references Trojan 22-AGM

Brand Trojan
Manufacturer range TROJAN AGM
Manufacturer reference (MPN) 22-AGM
EAN-13 barcode 8404653001506
Dimensions (length × width × height) 228 × 139 × 204 mm (228x139x204)

Recommended accessories — complement the Trojan 22-AGM 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 this battery AGM? What is it for?

Yes. The 22-AGM from Trojan 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 is the Trojan 22-AGM 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 long does the Trojan 22-AGM battery last?

Expected lifespan of the Trojan 22-AGM 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 22-AGM model?

Dimensions (length × width × height) are 228×139×204 mm — also written as 228x139x204 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 Trojan 22-AGM?

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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