# Renewable Energy Batteries > Deep cycle OPzS, OPzV, AGM and LiFePO4 batteries for off-grid solar PV, small wind and hybrid systems. Fullriver, Trojan Solar, Ritar, MK. Dispatched within 24h. **Category:** [Start](https://baterias.com/gb/) → [Battery brands](https://baterias.com/gb/battery-brands) → [Stationary Batteries](https://baterias.com/gb/stationary-batteries) - **Canonical URL**: https://baterias.com/gb/batteries-for-renewable-energy - **Language**: en-GB ## Description The **renewable-energy battery** is the silent core of any distributed generation system that must run off-grid: **solar PV off-grid**, self-consumption with storage, small wind (rural, marine), mini-hydro and hybrid solar+wind+genset. Different from a car battery: here you need thousands of cycles at 50% DoD over 10-25 years. Four technologies: **OPzS** (flooded tubular, 20-25 years), **OPzV** (sealed gel tubular, 18-22 years), **deep cycle AGM** (10-12 years, entry), **LiFePO4** (4,000-6,000 cycles at 80% DoD). ## Sizing your renewable bank Start with **daily kWh** and **days of autonomy without generation**. A family off-grid home: 8-15 kWh/day; with 3 days autonomy at 50% DoD lead, that's 48-90 kWh nominal — bank voltage matched to the inverter (24 V small, 48 V whole-house). LiFePO4 drops to 24-45 usable kWh at 80% DoD. ### Table by renewable application | Application | Typical capacity | Voltage | Technology | |---|---|---|---| | Cabin / shelter off-grid | 200-400 Ah | 12 / 24 V | Deep cycle AGM / OPzV | | Family off-grid home | 800-1,500 Ah | 48 V | OPzS / OPzV / LiFePO4 | | Self-consumption + storage | 5-15 kWh usable | 48 V | LiFePO4 (wall rack) | | Small wind / mini-hydro | 200-800 Ah | 24 / 48 V | AGM / OPzV | | Telecom / remote monitoring | 100-400 Ah | 48 V | OPzV long-cycle gel | ### OPzS vs OPzV vs AGM vs Lithium **OPzS** remains the most cost-effective long-term option for family off-grid — 20-25 year life with distilled water top-up every 1-3 years. **OPzV gel** is the sealed version (zero maintenance) — for unventilated technical rooms or telecom cabinets. **Deep cycle AGM** is the affordable entry. **LiFePO4 48 V rack** is the new benchmark: half the footprint, 100% DoD without penalty, 10-15 year life, native integration with Victron, SMA, Fronius inverters. ### Leading brands - [Trojan Solar Signature 1500](https://baterias.com/gb/batteries-trojan) - [Fullriver DC AGM](https://baterias.com/gb/batteries-fullriver) - [Ritar OPzV / OPzS](https://baterias.com/gb/batteries-ritar) - [MK Battery Gel](https://baterias.com/gb/batteries-mk) ### How to compare before choosing your renewable bank Use the [comparator](https://baterias.com/gb/comparator) to see capacity (Ah/kWh), voltage, cycle life and dimensions of each model at a glance, and pick the combination that best fits your inverter and target autonomy. ## Frequently asked questions about renewable-energy batteries ### **How long does an OPzS battery last in an off-grid installation?** 20-25 years, provided distilled water is topped up every 1-3 years; it remains the most cost-effective long-term option for a family home. ### **What's the difference between OPzS and OPzV?** OPzS is flooded tubular (needs water top-ups); OPzV is its sealed gel version, maintenance-free, designed for unventilated technical rooms or telecom cabinets. ### **Is LiFePO4 lithium worth it over lead-acid for renewables?** A 48 V LiFePO4 rack takes up half the space, tolerates 100% depth of discharge without penalty, lasts 10-15 years and integrates natively with Victron, SMA or Fronius inverters. ### **How do I know how many kWh I need for my renewable bank?** Multiply your daily kWh consumption by the days of autonomy without generation you want to cover, adjusted for the maximum depth of discharge of your chosen technology (50% lead, 80% lithium). ### **Do these batteries also work for wind or mini-hydro, not just solar?** Yes. Small wind and mini-hydro systems use the same 200-800 Ah AGM or OPzV banks at 24/48 V as an equivalent off-grid solar installation. Catalogue curated by our technical team. **12,210 Trustpilot reviews · 4.5/5**. 24-48 h delivery in mainland Spain and Portugal (orders before 6:00 pm); 14-day returns with free collection on the Iberian mainland. ## Products in this category | Product | Brand | Price | |---|---|---| | [Solar battery Trojan SSIG 06 290 6V 265Ah](https://baterias.com/gb/battery-trojan-ssig-06-290-6v-265ah) | TROJAN | 549,40 € | | [Solar battery Trojan SSIG 12 95 12V 87Ah](https://baterias.com/gb/battery-trojan-ssig-12-95-12v-87ah) | TROJAN | 400,40 € | | [Solar battery Trojan SSIG 12 255 12V 229Ah](https://baterias.com/gb/battery-trojan-ssig-12-255-12v-229ah) | TROJAN | 915,50 € | | [Solar battery Trojan SSIG 12 230 12V 209Ah](https://baterias.com/gb/battery-trojan-ssig-12-230-12v-209ah) | TROJAN | 821,20 € | | [Solar battery Trojan SSIG 12 170 12V 153Ah](https://baterias.com/gb/battery-trojan-ssig-12-170-12v-153ah) | TROJAN | 609,60 € | | [Solar battery Trojan SSIG 12 145 12V 132Ah](https://baterias.com/gb/battery-trojan-ssig-12-145-12v-132ah) | TROJAN | 542,50 € | | [Solar battery Trojan SSIG 12 120 12V 107Ah](https://baterias.com/gb/battery-trojan-ssig-12-120-12v-107ah) | TROJAN | 438,30 € | | [Solar battery Trojan SSIG 06 490 6V 443Ah](https://baterias.com/gb/battery-trojan-ssig-06-490-6v-443ah) | TROJAN | 960,60 € | | [Solar battery Trojan SSIG 06 475 6V 428Ah](https://baterias.com/gb/battery-trojan-ssig-06-475-6v-428ah) | TROJAN | 872,40 € | | [Solar battery Trojan SSIG 06 405 6V 366Ah](https://baterias.com/gb/battery-trojan-ssig-06-405-6v-366ah) | TROJAN | 815,10 € | | [Solar battery Trojan SSIG 06 375 6V 336Ah](https://baterias.com/gb/battery-trojan-ssig-06-375-6v-336ah) | TROJAN | 735,30 € | | [Solar battery Trojan SSIG 06 255 6V 229Ah](https://baterias.com/gb/battery-trojan-ssig-06-255-6v-229ah) | TROJAN | 401,30 € | | [Solar battery Trojan SSIG 06 235 6V 214Ah](https://baterias.com/gb/battery-trojan-ssig-06-235-6v-214ah) | TROJAN | 362,90 € | | [Solar battery Trojan SPRE 12 225 12V 204Ah](https://baterias.com/gb/battery-trojan-spre-12-225-12v-204ah) | TROJAN | 941,30 € | | [Solar battery Trojan SPRE 06 415 6V 377Ah](https://baterias.com/gb/battery-trojan-spre-06-415-6v-377ah) | TROJAN | 921,20 € | ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — automotive battery specialists since 2012. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-10-26*