Trojan J305-AGM AGM Reliant · Solar battery 6V 310Ah
Solar battery Trojan J305-AGM 6V 310Ah AGM images
Specifications
| Brand | TROJAN |
|---|---|
| Part number | J305-AGM |
| Voltage (V) | 6 |
| Capacity (C20) | 310Ah (c20) |
| Capacity (C5) | 250Ah (c5) |
| Technology | AGM |
| Length | 296.00 mm |
| Width | 176.00 mm |
| Height | 358.00 mm |
Trojan J305-AGM 6V 310Ah 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
Where it fits: the Trojan J305-AGM is one of our batteries for solar applications, belongs to our Trojan batteries and by capacity it sits among our 310Ah batteries.
The Trojan J305-AGM in practice
J305-AGM vs Trojan SAGM 06 315
The Trojan J305-AGM offers 310 Ah and 0 A cold cranking in a 296 × 176 × 358 mm case. The Trojan SAGM 06 315, same brand and technology, goes up to 315 Ah and 0 A and costs €73.65 more. If the tray takes the size, extra capacity and cranking give winter margin; if not, this one is the fit.
Solar battery Trojan J305-AGM AGM Reliant 310Ah 6V
For off-grid photovoltaic installations and storage systems, the Trojan J305-AGM from the AGM Reliant range stores 310 Ah with AGM technology through daily charge and discharge cycles. It replaces the original battery without adaptation in off-grid PV systems with a 296 × 176 × 358 mm format: same 310 Ah capacity.
- AGM technology: absorbed electrolyte, no spills, can be mounted at an angle.
- Optimised for daily charge and discharge cycles.
- Good tolerance to extreme temperatures.
- Long life on float and moderate cycling.
What the Trojan J305-AGM is for
Designed for off-grid photovoltaic installations and storage systems, the Trojan J305-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 44 kg and 5 6 15 terminals.
The Trojan J305-AGM: AGM Reliant range and AGM technology
Within the Trojan catalogue, the AGM Reliant series groups the references designed for this use. The J305-AGM is the 310 Ah model of that family, with the same performance as its siblings in other sizes.
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.
Dimensions, polarity and mounting
The Trojan J305-AGM is made in the 296 × 176 × 358 mm format and weighs 44 kg. It uses 5 6 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 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.
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.
Official warranty
The Trojan J305-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.
Shipping, delivery and returns
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.
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ReferenceBCOM-TROJAN-J305-AGM
Data sheet
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BrandTROJAN
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ReferenceJ305-AGM
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ModelTROJAN AGM RELIANT
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Voltage (V)6
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Length296.00 mm
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Width176.00 mm
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Height358.00 mm
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Weight44 Kgs
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TechnologyAGM
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Terminal type5 6 15
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Capacity (C20)310Ah (c20)
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Capacity (C5)250Ah (c5)
Specific References
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MPNJ305-AGM
Trojan J305-AGM: alternatives with the same dimensions
Batteries from our catalogue with the same dimensions, voltage and technology as the Trojan J305-AGM and a similar capacity, sorted by sales. They are not manufacturer-approved equivalents: check the polarity and capacity of your original battery.
| Product | Specifications | Technology | Price | |||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Trojan
J305-AGM
This battery
|
6V 310Ah | AGM | 818,30 € | |||||||||||||||||||||
Trojan
SAGM 06 315
Same size |
6V 315Ah | AGM | 891,95 € +73,65 € | |||||||||||||||||||||
| ||||||||||||||||||||||||
| J305-AGM | SAGM 06 315 | |
|---|---|---|
| Capacity | 310 Ah | 315 Ah |
| Cold cranking (EN) | — | — |
| Technology | AGM | AGM |
| Dimensions (mm) | 296 × 176 × 358 | 296 × 176 × 355 |
| Positive terminal | — | — |
| Price | 818,30 € | 891,95 € |
Automatic selection by dimensions (±3 mm), voltage, technology and capacity (−10 % / +20 %). Official manufacturer warranty on every option.
Other 310Ah batteries: We stock 3 models of 310 Ah to compare by price, technology and cold cranking: see all 310Ah batteries.
Recommended accessories
Compatible vehicles
The Trojan J305-AGM fits 14 vehicles. Most searched below:
Frequently asked questions
Is the Trojan J305-AGM an AGM battery and what are the benefits of AGM?
Yes. The J305-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.
What are the measurements of the J305-AGM model?
Dimensions (length × width × height) are 296×176×358 mm — also written as 296x176x358 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.
Trojan J305-AGM or Trojan SAGM 06 315: which one to choose?
Same case and same technology as the J305-AGM: an alternative by size, not an official equivalent. Compared with the J305-AGM it has 5 Ah more. It costs 73,65 € more. If the polarity matches and your equipment had a similar capacity, it works as a replacement; if in doubt, ask us with your model.
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