Trojan SAGM 08 165 · Solar battery 8V 165Ah AGM
Specifications
| Brand | TROJAN |
|---|---|
| Part number | SAGM 08 165 |
| Voltage (V) | 8 |
| Capacity (C20) | 165Ah (c20) |
| Capacity (C10) | 145Ah (c10) |
| Technology | AGM |
| Length | 262.00 mm |
| Width | 179.00 mm |
| Height | 273.00 mm |
€639.50
VAT included
4,56/5★★★★★9 reviewsVerified purchases
- ★★★★★Victor Bravo:
Recibí en plazo. Todo ok
- ★★★★Tomas Leon:
Pedí la batería un viernes a las 4 y me llegó el lunes a las 11
- ★★★★Josep Blanco:
Compre la TROJAN SAGM 08 165 y llamé para que me ayudaran con la instalación. Muy buena asesoría
Trojan SAGM 08 165 8V 165Ah 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
8 V
Capacity
165 Ah
Dimensions
262×179×273 mm
Technology
AGM
Weight
32 kg
Model
TROJAN SOLAR AGM - 1700 CYCLES 50% DOD
Solar battery Trojan SAGM 08 165 Solar AGM - 1700 Ciclos 50% DOD 165Ah 8V
8VVoltage
165AhCapacity
32kgWeight
The Trojan SAGM 08 165 with AGM technology stores 165 Ah at 8 V for off-grid photovoltaic installations and storage systems. Its 262 × 179 × 273 mm make it the exact replacement for the 165 Ah battery fitted as standard to many off-grid PV systems.
- Low self-discharge during the darker months.
- AGM: faster recharging and better cycle resistance than a conventional battery.
- Compatible with common MPPT and PWM controllers.
- Maintenance-free in off-grid installations.
What the Trojan SAGM 08 165 is for
Designed for off-grid photovoltaic installations and storage systems, the Trojan SAGM 08 165 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 32 kg.
Will it fit your current battery tray?
In terms of format, the Trojan SAGM 08 165 measures 262 × 179 × 273 mm (length × width × height) and weighs 32 kg. 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 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. At baterias.com we work directly with the manufacturer or its official distributor: real stock, brand-new product and official warranty.
The Trojan SAGM 08 165: Solar AGM - 1700 Ciclos 50% DOD range and AGM technology
Within the Trojan catalogue, the Solar AGM - 1700 Ciclos 50% DOD series groups the references designed for this use. The SAGM 08 165 is the 165 Ah model of that family, with the same performance as its siblings in other sizes.
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.
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.
Warranty and coverage
The Trojan SAGM 08 165 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.
BCOM-TROJAN-SAGM 08 165
Data sheet
- Brand
- TROJAN
- Reference
- SAGM 08 165
- Model
- TROJAN SOLAR AGM - 1700 CYCLES 50% DOD
- Voltage (V)
- 8
- Length
- 262.00 mm
- Width
- 179.00 mm
- Height
- 273.00 mm
- Weight
- 32 Kgs
- Technology
- AGM
- Capacity (C20)
- 165Ah (c20)
- Capacity (C10)
- 145Ah (c10)
Specific References
- MPN
- SAGM 08 165
4,56/5
Verified purchasesLatest verified reviews
★★★★★Victor Bravo
04/02/2026Oye, un 10
Recibí en plazo. Todo ok
★★★★★Tomas Leon
22/01/2026Recibí la batería en 1 día
Pedí la batería un viernes a las 4 y me llegó el lunes a las 11
★★★★★Josep Blanco
21/01/2026No sabía que el asesoramiento era gratis, de 10
Compre la TROJAN SAGM 08 165 y llamé para que me ayudaran con la instalación. Muy buena asesoría
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 Trojan SAGM 08 165 an AGM battery and what are the benefits of AGM?
Yes. The SAGM 08 165 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 SAGM 08 165 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.
What is the service life of the SAGM 08 165 model?
Expected lifespan of the Trojan SAGM 08 165 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.
Which batteries are equivalent to the Trojan SAGM 08 165?
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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