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Trojan 27-AGM · Solar battery 12V 89Ah AGM

Specifications

BrandTROJAN
Part number27-AGM
Voltage (V)12
Capacity (C20)89Ah (c20)
Capacity (C5)77Ah (c5)
TechnologyAGM
Length306.00 mm
Width174.00 mm
Height237.00 mm
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Price: €603.80
VAT included
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Brand: Trojan Batteries Part number: 27-AGM

Trojan 27-AGM 12V 89Ah 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
89 Ah C20
Dimensions
306×174×237 mm
Technology
AGM
Weight
29 kg
Model
TROJAN AGM
Logo Trojan

Solar battery Trojan 27-AGM 89Ah 12V

12VVoltage
89AhCapacity
29kgWeight

The 12 V, 89 Ah Trojan 27-AGM solar battery with AGM technology is designed for off-grid photovoltaic installations and storage systems. It measures 306 × 174 × 237 mm, the format sought by anyone replacing a 89 Ah battery in off-grid PV systems.

  • Optimised for daily charge and discharge cycles.
  • AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
  • Long life on float and moderate cycling.
  • Good tolerance to extreme temperatures.

What the Trojan 27-AGM is for

Designed for off-grid photovoltaic installations and storage systems, the Trojan 27-AGM tolerates extreme temperatures and long periods of low activity. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 29 kg and 6 terminals.

Size, terminals and hold-down of the Trojan 27-AGM

The Trojan 27-AGM is made in the 306 × 174 × 237 mm format and weighs 29 kg. It uses 6 terminals, the system that anchors and connects it in the vehicle. Checking the three dimensions and the terminal position before buying avoids the most common mistake when replacing a battery.

Technology inside the Trojan 27-AGM

The 27-AGM is one of the Trojan references for this type of use; it shares the same manufacturing and quality-control criteria as the rest of the brand's catalogue.

AGM means the acid is held in a glass mat instead of floating free. That is why the battery can be installed in the cabin without gases, survives more cycles and recovers its charge quickly.

What Trojan does differently

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. All the Trojan batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.

Warranty and coverage

The Trojan 27-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.

Usage and maintenance tips

In the darker months, check the voltage periodically and avoid full discharges. Size the installation so as not to discharge the battery more than 50% daily and set the controller to the battery technology.

When you get it and how to return it

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.

  • Reference
    BCOM-TROJAN-27-AGM

Data sheet

  • Brand
    TROJAN
  • Reference
    27-AGM
  • Model
    TROJAN AGM
  • Voltage (V)
    12
  • Length
    306.00 mm
  • Width
    174.00 mm
  • Height
    237.00 mm
  • Weight
    29 Kgs
  • Technology
    AGM
  • Terminal type
    6
  • Capacity (C20)
    89Ah (c20)
  • Capacity (C5)
    77Ah (c5)

Specific References

  • EAN13
    8404653001520
  • MPN
    27-AGM

Codes and references Trojan 27-AGM

Brand Trojan
Manufacturer range TROJAN AGM
Manufacturer part number (MPN) 27-AGM
Also known as 27AGM · 27 AGM
EAN-13 barcode 8404653001520
Dimensions (length × width × height) 306 × 174 × 237 mm (306x174x237)

Recommended accessories — complement the Trojan 27-AGM with a charger or tester

Frequently asked questions

Is the Trojan 27-AGM an AGM battery and what are the benefits of AGM?

Yes. The 27-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 27-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 our blog. 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 27-AGM battery last?

Expected lifespan of the Trojan 27-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 dimensions of the Trojan 27-AGM battery?

Dimensions (length × width × height) are 306×174×237 mm — also written as 306x174x237 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 27-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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