Trojan J185-AGM AGM Reliant · Solar battery 200Ah
Specifications
| Brand | TROJAN |
|---|---|
| Part number | J185-AGM |
| Voltage (V) | 12 |
| Capacity (C20) | 200Ah (c20) |
| Capacity (C5) | 157Ah (c5) |
| Technology | AGM |
| Length | 380.00 mm |
| Width | 176.00 mm |
| Height | 367.00 mm |
Trojan J185-AGM 12V 200Ah 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 J185-AGM is one of our batteries for solar applications, belongs to our Trojan batteries and by capacity it sits among our 200Ah batteries.
The Trojan J185-AGM in practice
J185-AGM vs Trojan SAGM 12 205
The Trojan J185-AGM offers 200 Ah and 0 A cold cranking in a 380 × 176 × 367 mm case. The Trojan SAGM 12 205, same brand and technology, goes up to 205 Ah and 0 A and costs €99.65 more. The difference shows on diesels and in hard winters; for a daily-driven petrol car the extra is not needed.

Solar battery Trojan J185-AGM AGM Reliant 200Ah 12V
The 12 V, 200 Ah Trojan J185-AGM solar battery from the AGM Reliant range with AGM technology is designed for off-grid photovoltaic installations and storage systems. It measures 380 × 176 × 367 mm, the format sought by anyone replacing a 200 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.
Dimensions, polarity and mounting
In terms of format, the Trojan J185-AGM measures 380 × 176 × 367 mm (length × width × height) and weighs 57 kg. It uses 5 6 15 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.
What the Trojan J185-AGM is for
With 200 Ah, the Trojan J185-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 57 kg and 5 6 15 terminals.
The Trojan J185-AGM: AGM Reliant range and AGM technology
The J185-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.
In an AGM battery the electrolyte is absorbed in glass-fibre separators: there is no free liquid, it cannot spill and it can be mounted at an angle. That construction lowers internal resistance, speeds up recharging and multiplies cycle life compared with a conventional battery.
What Trojan does differently
Founded in 1925 in California, Trojan invented the golf cart battery and remains the standard in deep-discharge applications that demand thousands of cycles. All the Trojan batteries in our catalogue are genuine product, recently manufactured and covered by the manufacturer's warranty.
Official warranty
The Trojan J185-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.
How to make it last longer
Size the installation so as not to discharge the battery more than 50% daily and set the controller to the battery technology. In the darker months, check the voltage periodically and avoid full discharges.
Shipping, delivery and returns
Same-day dispatch from our warehouse for in-stock orders placed before 6:00 pm: 1 to 2 working days in mainland Spain and 1 to 3 working days in mainland Portugal, 1 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.
Other 200Ah batteries: We stock 22 models of 200 Ah to compare by price, technology and cold cranking: see all 200Ah batteries.
Recommended accessories
Frequently asked questions
Is the Trojan J185-AGM an AGM battery and what are the benefits of AGM?
Yes: the J185-AGM from Trojan uses AGM (Absorbent Glass Mat) technology, a sealed lead-acid battery whose electrolyte soaks a glass-fibre mat. Its advantages: more charge/discharge cycles than a conventional battery and better heat tolerance.
What are the dimensions of the Trojan J185-AGM battery?
It measures 380×176×367 mm in length × width × height, with the terminals included in the height. Measure the battery tray before ordering: a one-millimetre difference is enough for the hold-down clamp not to close.
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