Trojan T105-AGM · Solar battery 6V 217Ah AGM
Specifications
| Brand | TROJAN |
|---|---|
| Part number | T105-AGM |
| Voltage (V) | 6 |
| Capacity (C20) | 217Ah (c20) |
| Capacity (C5) | 171Ah (c5) |
| Technology | AGM |
| Length | 262.00 mm |
| Width | 179.00 mm |
| Height | 273.00 mm |
€594.50
VAT included
4,82/5★★★★★31 reviewsVerified purchases
- ★★★★Jose Angel Jimenez:
Buen asesoramiento en la instalación
- ★★★★★Jose Maria Vargas:
Pedí la batería un miércoles a las 4 y me llegó el jueves a las 2
- ★★★★★Juan Jose Ortiz:
Anímo a que llameís, la atención es gratuita y muy buena.
Trojan T105-AGM 6V 217Ah 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
6 V
Capacity
217 Ah
Dimensions
262×179×273 mm
Technology
AGM
Weight
31 kg
Model
TROJAN AGM RELIANT
Solar battery Trojan T105-AGM AGM Reliant 217Ah 6V
6VVoltage
217AhCapacity
31kgWeight
The Trojan T105-AGM with AGM technology stores 217 Ah at 6 V for off-grid photovoltaic installations and storage systems. Measuring 262 × 179 × 273 mm, it is the direct replacement for off-grid PV systems fitted from the factory with a 217 Ah battery of this format.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Low self-discharge during the darker months.
- Maintenance-free in off-grid installations.
- Compatible with common MPPT and PWM controllers.
Will it fit your current battery tray?
In terms of format, the Trojan T105-AGM measures 262 × 179 × 273 mm (length × width × height) and weighs 31 kg. It uses 5 8 15 terminals, the system that anchors and connects it in the vehicle. Before replacing it, measure your current battery tray: if all three dimensions and the terminal positions match, the swap is direct and needs no adapters.
What the Trojan T105-AGM is for
With 217 Ah, the Trojan T105-AGM stores the energy from your panels for the night and cloudy days. Check that it matches your current battery in dimensions, terminals and hold-down: this reference has a weight of 31 kg and 5 8 15 terminals.
The Trojan T105-AGM: AGM Reliant range and AGM technology
The T105-AGM is part of the Trojan AGM Reliant range. Choosing the right reference within the series comes down to capacity, dimensions and terminals: technology and quality are common to the whole family.
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.
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. We guarantee that every Trojan arrives new, charged and with the manufacturer's full warranty.
Manufacturer's warranty
The Trojan T105-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
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.
When you get it and how to return it
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-T105-AGM
Data sheet
- Brand
- TROJAN
- Reference
- T105-AGM
- Model
- TROJAN AGM RELIANT
- Voltage (V)
- 6
- Length
- 262.00 mm
- Width
- 179.00 mm
- Height
- 273.00 mm
- Weight
- 31 Kgs
- Technology
- AGM
- Terminal type
- 5 8 15
- Capacity (C20)
- 217Ah (c20)
- Capacity (C5)
- 171Ah (c5)
Specific References
- UPC
- 026190228772
- MPN
- T105-AGM
4,82/5
Verified purchasesLatest verified reviews
★★★★★Jose Angel Jimenez
15/05/2026Me ayudaron con la instalación
Buen asesoramiento en la instalación
★★★★★Jose Maria Vargas
06/02/2026Me llegó al día siguiente
Pedí la batería un miércoles a las 4 y me llegó el jueves a las 2
★★★★★Juan Jose Ortiz
06/01/2026Gran asesoramiento
Anímo a que llameís, la atención es gratuita y muy buena.
Recommended accessories
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.
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.
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.
Step 3. Disconnect the negative (−) first
With insulated gloves, remove the negative (−) cable first. Some UPS have protection fuses — note their position before removing.
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.
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.
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.
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.
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 T105-AGM model AGM? What does this technology offer?
Yes. The T105-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 T105-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 T105-AGM battery last?
Expected lifespan of the Trojan T105-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 size is this battery?
Dimensions (length × width × height) are 262×179×273 mm — also written as 262x179x273 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.
What are the equivalents of the T105-AGM model?
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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