12,482 customer reviewsThank you for trusting us!Thank you! Excellent 4.5 out of 5

Trojan 27-GEL · Solar battery 91Ah GEL

Specifications

BrandTROJAN
Part number27-GEL
Voltage (V)12
Capacity (C20)91Ah (c20)
Capacity (C5)76Ah (c5)
TechnologyGEL
Length324.00 mm
Width171.00 mm
Height234.00 mm
See the full specifications →
Price: €751.50
VAT included
Quantity

Brand: Trojan Batteries Part number: 27-GEL

Trojan 27-GEL 12V 91Ah 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
91 Ah C20
Dimensions
324×171×234 mm
Technology
GEL
Weight
29 kg
Model
TROJAN GEL

Where it fits: the Trojan 27-GEL is one of our batteries for solar applications, belongs to our Trojan batteries and by capacity it sits among our 91Ah batteries.

The Trojan 27-GEL in practice

27-GEL vs Trojan 31-GEL

The Trojan 27-GEL offers 91 Ah and 0 A cold cranking in a 324 × 171 × 234 mm case. The Trojan 31-GEL, same brand and technology, goes up to 102 Ah and 0 A with 5 mm more length and costs €42.00 more. The difference shows on diesels and in hard winters; for a daily-driven petrol car the extra is not needed.

Logo Trojan

Solar battery Trojan 27-GEL 91Ah 12V

12VVoltage
91AhCapacity
29kgWeight

For off-grid photovoltaic installations and storage systems, the Trojan 27-GEL stores 91 Ah with GEL technology through daily charge and discharge cycles. It measures 324 × 171 × 234 mm, the format sought by anyone replacing a 91 Ah battery in off-grid PV systems.

  • Long life on float and moderate cycling.
  • Good tolerance to extreme temperatures.
  • Optimised for daily charge and discharge cycles.
  • GEL technology: gelled electrolyte, fully sealed and maintenance-free.

Will it fit your current battery tray?

In terms of format, the Trojan 27-GEL measures 324 × 171 × 234 mm (length × width × height) and weighs 29 kg. It uses 7 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.

What the Trojan 27-GEL is for

Designed for off-grid photovoltaic installations and storage systems, the Trojan 27-GEL 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 7 terminals.

Technology inside the Trojan 27-GEL

The 27-GEL 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.

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.

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-GEL 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

GEL batteries need lower charging voltages: always use a charger with a GEL mode so as not to damage the electrolyte. In the darker months, check the voltage periodically and avoid full discharges.

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 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.

  • Reference
    BCOM-TROJAN-27-GEL

Data sheet

  • Brand
    TROJAN
  • Reference
    27-GEL
  • Model
    TROJAN GEL
  • Voltage (V)
    12
  • Length
    324.00 mm
  • Width
    171.00 mm
  • Height
    234.00 mm
  • Weight
    29 Kgs
  • Technology
    GEL
  • Terminal type
    7
  • Capacity (C20)
    91Ah (c20)
  • Capacity (C5)
    76Ah (c5)

Specific References

  • EAN13
    8404653001322
  • MPN
    27-GEL

Download

Datasheet Trojan 27-GEL (English)

PDF datasheet of the Trojan 27-GEL battery – English

Download (573.4KB)

Codes and references Trojan 27-GEL

Brand Trojan
Manufacturer range TROJAN GEL
Manufacturer part number (MPN) 27-GEL
Also known as 27GEL · 27 GEL
EAN-13 barcode 8404653001322
Dimensions (length × width × height) 324 × 171 × 234 mm (324x171x234)

Other 91Ah batteries: We stock 3 models of 91 Ah to compare by price, technology and cold cranking: see all 91Ah batteries.

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

Compatible vehicles

The Trojan 27-GEL fits 22 vehicles. Most searched below:

See all 22 compatible vehicles

Frequently asked questions

Is the 27-GEL model a gel battery? Where is it used?

Yes. The Trojan 27-GEL is GEL: sealed lead-acid in which the electrolyte is a gel. Designed for cyclic use (solar installations, motorhomes, electric wheelchairs, motorcycles), it tolerates deep discharges very well. It needs a GEL-specific smart charger: its maximum charge voltage is lower than that of an AGM.

What are the dimensions of the Trojan 27-GEL battery?

Check the room available in your device, because a single millimetre too much can stop the clamp from closing. Its dimensions are 324×171×234 mm, also written 324x171x234 mm; the height already includes the terminals.


The top-rated online battery store in Spain

  • 4.5/5 · +12,400 reviews

    Audited by Trustpilot, no filters, no edits. The top-rated battery store in Spain.

    Trustpilot · verified, no filters

  • Official Varta distributor

    Official Varta wholesale distributor. 100% genuine batteries, recently manufactured, best price and no middlemen.

    World’s best-selling battery brand

  • +100,000 satisfied customers

    More than 100,000 customers already trust baterias.com — and recommend us to their friends and family.

    They trust us and recommend us

Choose trust, choose quality, choose baterias.com.

Reviewed by the baterias.com technical team · Updated on

Loading...
Back to top