# Batteries for Solar Applications > 12V solar battery and solar panel battery range: deep cycle AGM, stationary OPzS/OPzV and LiFePO4 by Fullriver, Trojan Solar, Ritar and MK. 24h delivery. **Category:** [Start](https://baterias.com/gb/beginning) → [Batteries](https://baterias.com/gb/batteries) → [Cyclic Batteries](https://baterias.com/gb/cyclic-batteries) - **Canonical URL**: https://baterias.com/gb/batteries-for-solar-applications - **Language**: en-GB ## Description **Solar PV batteries**: off-grid, hybrid backup and self-consumption with storage. A good **12V solar battery** or 24/48 V bank accepts slow daytime panel charge, discharges slowly at night and tolerates thousands of cycles at 50% DoD without capacity loss. Three dominant technologies: **deep cycle AGM** (entry-level, the most common **solar panel battery** for small installations), **OPzS / OPzV** (stationary, 20-25 years) and **LiFePO4 lithium** (premium, 4,000-6,000 cycles at 80% DoD). ## Sizing your solar bank Start with your **daily consumption in kWh**. An off-grid home averages 5-15 kWh/day. For three days of autonomy with 50% lead DoD, you need 30-90 kWh nominal — sized to inverter voltage (12, 24 or 48 V). Lithium drops it to 15-45 usable kWh at 80% DoD. ### Indicative table Application Typical capacity Voltage Technology Small off-grid (cabin, shelter) 200-400 Ah 12 / 24 V Deep cycle AGM Family off-grid home 800-1,500 Ah 48 V OPzS / GEL deep cycle Self-consumption with storage 5-15 kWh 48 V LiFePO4 Remote / telecom station 500-2,000 Ah 48 V OPzV ### Leading solar brands - [Fullriver DC AGM](/gb/batteries-fullriver) — entry and mid power. - [Trojan Solar Signature 1500](/gb/batteries-trojan) — 1,500 cycles at 50% DoD. - [Ritar RT](/gb/batteries-ritar) — budget solar range. - [MK Gel](/gb/batteries-mk) — sealed deep cycle. ### How to compare before buying your solar battery Use the [comparator](/gb/comparator) to check capacity (Ah), voltage, technology and dimensions of each solar battery at a glance, and pick the one that best fits your bank and inverter. ## Frequently asked questions about solar batteries ### **How long does an OPzS or OPzV solar battery last?** Stationary OPzS/OPzV batteries reach 20-25 years of service life in typical off-grid use, well beyond what a deep cycle AGM offers, which is cheaper up front but shorter-lived. ### **Is LiFePO4 lithium worth it over lead-acid for solar?** LiFePO4 handles 4,000-6,000 cycles at 80% depth of discharge, far beyond typical lead-acid figures at the same depth. It's the premium choice when space or weight are limiting factors. ### **How do I calculate how many batteries I need for my solar panels?** Start from your daily kWh consumption and the days of autonomy without sun you want to cover; combined with your inverter voltage (12, 24 or 48 V), that gives you the bank's nominal capacity, as shown in the indicative table on this page. ### **Can I use a car battery for a solar system?** It's not recommended: a car battery (SLI) is built for cranking spikes, not the deep, slow, sustained cycling of a solar installation. Catalogue curated by our technical team. **10,650 Trustpilot reviews · 4.4/5**. 24h mainland delivery, free 14-day returns. ## Products in this category | Product | Brand | Price | |---|---|---| | [Caravan battery Optima YTS-5.5 12V 75Ah AGM](https://baterias.com/gb/battery-optima-yellow-top-yts-55-8051-187-12v-75ah) | OPTIMA | 260,45 € | | [Marine battery Varta LA95 12V 85Ah AGM](https://baterias.com/gb/battery-varta-la95agm-12v-95ah-850a) | VARTA | 181,75 € | | [Marine battery Optima BTDC-5.5 12V 75Ah AGM](https://baterias.com/gb/battery-optima-blue-top-btdc-55-8052-188-12v-75ah) | OPTIMA | 263,05 € | | [Marine battery Varta LFD140 12V 119Ah](https://baterias.com/gb/battery-varta-lfd140-12v-140ah-800a) | VARTA | 180,72 € | | [Marine battery Varta LA80 12V 77Ah AGM](https://baterias.com/gb/battery-varta-la80agm-12v-80ah-800a) | VARTA | 154,15 € | | [Marine battery Optima BTDC-4.2 12V 55Ah AGM](https://baterias.com/gb/battery-optima-blue-top-btdc-42-8016-253-12v-55ah) | OPTIMA | 216,23 € | | [Caravan battery Optima YTS-4.2 12V 55Ah AGM](https://baterias.com/gb/battery-optima-yellow-top-yts-42-8012-254-12v-55ah) | OPTIMA | 213,10 € | | [Marine battery Varta LA105 12V 95Ah AGM](https://baterias.com/gb/battery-varta-la105agm-12v-105ah-950a) | VARTA | 243,20 € | | [Marine battery Varta LA70 12V 60Ah AGM](https://baterias.com/gb/battery-varta-la70agm-12v-70ah-760a) | VARTA | 140,15 € | | [Caravan battery Optima YTU-4.2 12V 55Ah AGM](https://baterias.com/gb/battery-optima-yellow-top-ytu-42-8014-254-12v-55ah) | OPTIMA | 210,15 € | | [Caravan battery Optima YTR-2.7 12V 38Ah AGM](https://baterias.com/gb/battery-optima-yellow-top-ytr-27-8073-176-12v-38ah) | OPTIMA | 154,20 € | | [Marine battery Fullriver DC115-12A 12V 115Ah AGM](https://baterias.com/gb/battery-agm-fullriver-dc115-12a-12v-115ah) | FULLRIVER | 379,67 € | | [Marine battery Optima BTSLI-4.2 12V 50Ah AGM](https://baterias.com/gb/battery-optima-blue-top-btsli-42-8006-252-12v-50ah) | OPTIMA | 180,80 € | | [Marine battery Fullriver DC35-12A 12V 35Ah AGM](https://baterias.com/gb/battery-agm-fullriver-dc35-12a-12v-35ah) | FULLRIVER | 139,73 € | | [Marine battery Varta LFD90 12V 77Ah](https://baterias.com/gb/battery-varta-lfd90-12v-90ah-800a) | VARTA | 214,68 € | ## Technical team (editorial authorship) The FAQs, guides and comparisons on this site are reviewed by the baterias.com technical team — over 25 years of experience validating automotive batteries. → https://baterias.com/gb/technical-team --- *baterias.com — Automotive batteries · 2026-07-16*