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Lithium solar batteries - Long-lasting performance and autonomy
Lithium solar batteries offer a sustainable, safe, and high-performance storage solution for all solar installations. Compact, lightweight, with a lifespan of up to 20 years, they enable optimal energy autonomy, whether in homes or isolated sites.
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€0.00 i.e. 0.15 € / Wc
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Unit price including VAT €499.99
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-31% Regular Price €15,912.00€11,054.37 i.e. 0.15 € / Wc
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-31% Regular Price €13,770.00€9,561.88 i.e. 0.15 € / Wc
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-31% Regular Price €11,628.00€8,069.39 i.e. 0.15 € / Wc
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-31% Regular Price €7,344.00€5,084.41 i.e. 0.15 € / Wc
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Unit price including VAT €1,034.28
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Unit price including VAT €1,105.10
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Unit price including VAT €1,978.51
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- Capacité nominale 7.5Ah Remove This Item
- Capacité nominale 200Ah Remove This Item
Where to buy a lithium battery for your solar installation?
Lithium solar batteries have become essential for anyone looking to optimize their energy autonomy. They offer unmatched performance, an exceptional lifespan (up to more than 6000 cycles for LiFePO4 models), and high safety in use. Unlike old technologies like lead or gel, they are compact, lightweight, maintenance-free, and completely waterproof.
At Allo Solar, we select quality lithium batteries that are tested, certified, and suitable for residential, portable, or off-grid use. You will find 12V, 24V models, compact formats, or high-end LiFePO4 batteries with integrated BMS, ready to use. Take advantage of our expert customer service to help you choose the most suitable battery for your solar installation.
Is it profitable to install a lithium battery?
Absolutely. Thanks to their high efficiency and ability to support rapid and deep recharges, lithium batteries optimize self-consumption. This reduces your dependence on the grid and your electricity bills.
Even if their initial cost is higher than GEL or AGM batteries, their longevity (15 to 20 years) and reliability make them a very cost-effective investment. Moreover, they integrate perfectly into a system with solar panels and hybrid inverter, especially for surplus storage and avoiding selling it back at €0.04 per kWh. How to choose a good solar lithium battery? Essential selection criteria - Voltage and capacity: 12V, 24V, or 48V depending on your installation, capacity ranging from 1.6kWh to over 22kWh based on your autonomy needs. - Technology: favor LiFePO4 (lithium iron phosphate) batteries for their safety, thermal stability, and lifespan. - Format: opt for high-capacity lithium batteries for more energy autonomy or compact modules for small spaces (camper, boat…). - Compatibility: ensure the battery is compatible with your solar regulator or inverter. Comparison with GEL or lead batteries A lithium-ion battery charges 2 to 3 times faster than a GEL or lead battery. It also accepts deep and rapid discharges, making it much more responsive for intensive or intermittent uses. Conversely, GEL batteries are designed for slow discharges, making them less suitable for occasional high-power needs or rapid recharging by solar panels. Lithium batteries are also lighter, more compact, and require no maintenance. They are therefore ideal for modern residential installations, RVs, or remote sites. Ease of installation and use Simple installation Lithium batteries are often ready to use. Just connect the terminals to your solar system. Many models come with plug & play connectors, facilitating their integration. Practical tips - Fully recharge your battery during the first use. - Avoid regularly discharging below 20% of charge. - Never store a completely empty battery. - For long-term storage, keep it at 50-70% charge at around 15-18 °C. Questions you ask us about Lithium Batteries What is the best lithium battery for solar panels? LiFePO4 (lithium iron phosphate) batteries are now considered the benchmark for solar installations. Why? Because they combine reliability, safety, and longevity like no other technology. They support up to 8000 charge/discharge cycles, or more than 15 years of daily use, without significant capacity loss. Their high thermal stability makes them extremely safe, even in heat or intensive use. Unlike other lithium batteries, they pose no risk of explosion or combustion. Additionally, they allow deep discharges (up to 90% of capacity) without affecting their lifespan, maximizing your actual autonomy. Compact, lightweight, and maintenance-free, they are perfectly suited for off-grid homes, RVs, remote sites, or users seeking reliable backup power. Coupled with a BMS management system, they guarantee optimal performance day after day. Is a lithium battery profitable for a solar installation? Yes, a lithium battery is a cost-effective investment, especially for self-consumption systems. Although its initial cost is higher than a lead or gel battery, it stands out for its exceptional longevity (up to more than 15 years) and energy efficiency. With a yield above 95%, very little energy is lost between charging and discharging. Another major advantage: its ability to support rapid and deep charge/discharge cycles without premature wear. This maximizes the use of solar energy produced during the day, significantly reducing electricity purchases from the grid. On average, a lithium battery can halve your energy bill when properly sized. When combined with photovoltaic panels and a hybrid inverter, it becomes a real lever for energy autonomy. How to recharge a lithium battery with a solar panel? To efficiently recharge a lithium battery from your solar panels, it is essential to use a charge regulator or a hybrid inverter specifically compatible with lithium technology, especially LiFePO4 models. These devices ensure an appropriate charging curve, crucial for preserving the battery over time. An MPPT regulator is highly recommended: it optimizes the yield of your panels, even with varying sunlight, while ensuring rapid and safe recharging of your battery. Conversely, using an incompatible charger can lead to overcharging, overheating, or capacity loss in the long term. Finally, always respect the voltage and temperature ranges indicated by the manufacturer, and avoid 100% charges during long-term storage to preserve internal chemistry. Which battery to be autonomous? If you want to achieve complete energy independence, especially in an off-grid site, camper, or house not connected to the grid, it is essential to properly size your lithium battery. The rule is simple: calculate your average daily consumption in kWh, then multiply it by the number of days of autonomy desired (usually 3 to 5 days). For example, for a need of 1000 Wh per day, you will need a battery capable of storing 3000 to 5000 Wh (3 to 5 kWh). It is always recommended to include a margin for less sunny days or higher consumption peaks. LiFePO4 lithium batteries are perfectly suited for this use: they allow deep discharges without risk of damage and can be recharged quickly once the sun returns. They also retain their storage capacity even after several years of use, making them the best option for users seeking reliable and durable autonomy.
Even if their initial cost is higher than GEL or AGM batteries, their longevity (15 to 20 years) and reliability make them a very cost-effective investment. Moreover, they integrate perfectly into a system with solar panels and hybrid inverter, especially for surplus storage and avoiding selling it back at €0.04 per kWh. How to choose a good solar lithium battery? Essential selection criteria - Voltage and capacity: 12V, 24V, or 48V depending on your installation, capacity ranging from 1.6kWh to over 22kWh based on your autonomy needs. - Technology: favor LiFePO4 (lithium iron phosphate) batteries for their safety, thermal stability, and lifespan. - Format: opt for high-capacity lithium batteries for more energy autonomy or compact modules for small spaces (camper, boat…). - Compatibility: ensure the battery is compatible with your solar regulator or inverter. Comparison with GEL or lead batteries A lithium-ion battery charges 2 to 3 times faster than a GEL or lead battery. It also accepts deep and rapid discharges, making it much more responsive for intensive or intermittent uses. Conversely, GEL batteries are designed for slow discharges, making them less suitable for occasional high-power needs or rapid recharging by solar panels. Lithium batteries are also lighter, more compact, and require no maintenance. They are therefore ideal for modern residential installations, RVs, or remote sites. Ease of installation and use Simple installation Lithium batteries are often ready to use. Just connect the terminals to your solar system. Many models come with plug & play connectors, facilitating their integration. Practical tips - Fully recharge your battery during the first use. - Avoid regularly discharging below 20% of charge. - Never store a completely empty battery. - For long-term storage, keep it at 50-70% charge at around 15-18 °C. Questions you ask us about Lithium Batteries What is the best lithium battery for solar panels? LiFePO4 (lithium iron phosphate) batteries are now considered the benchmark for solar installations. Why? Because they combine reliability, safety, and longevity like no other technology. They support up to 8000 charge/discharge cycles, or more than 15 years of daily use, without significant capacity loss. Their high thermal stability makes them extremely safe, even in heat or intensive use. Unlike other lithium batteries, they pose no risk of explosion or combustion. Additionally, they allow deep discharges (up to 90% of capacity) without affecting their lifespan, maximizing your actual autonomy. Compact, lightweight, and maintenance-free, they are perfectly suited for off-grid homes, RVs, remote sites, or users seeking reliable backup power. Coupled with a BMS management system, they guarantee optimal performance day after day. Is a lithium battery profitable for a solar installation? Yes, a lithium battery is a cost-effective investment, especially for self-consumption systems. Although its initial cost is higher than a lead or gel battery, it stands out for its exceptional longevity (up to more than 15 years) and energy efficiency. With a yield above 95%, very little energy is lost between charging and discharging. Another major advantage: its ability to support rapid and deep charge/discharge cycles without premature wear. This maximizes the use of solar energy produced during the day, significantly reducing electricity purchases from the grid. On average, a lithium battery can halve your energy bill when properly sized. When combined with photovoltaic panels and a hybrid inverter, it becomes a real lever for energy autonomy. How to recharge a lithium battery with a solar panel? To efficiently recharge a lithium battery from your solar panels, it is essential to use a charge regulator or a hybrid inverter specifically compatible with lithium technology, especially LiFePO4 models. These devices ensure an appropriate charging curve, crucial for preserving the battery over time. An MPPT regulator is highly recommended: it optimizes the yield of your panels, even with varying sunlight, while ensuring rapid and safe recharging of your battery. Conversely, using an incompatible charger can lead to overcharging, overheating, or capacity loss in the long term. Finally, always respect the voltage and temperature ranges indicated by the manufacturer, and avoid 100% charges during long-term storage to preserve internal chemistry. Which battery to be autonomous? If you want to achieve complete energy independence, especially in an off-grid site, camper, or house not connected to the grid, it is essential to properly size your lithium battery. The rule is simple: calculate your average daily consumption in kWh, then multiply it by the number of days of autonomy desired (usually 3 to 5 days). For example, for a need of 1000 Wh per day, you will need a battery capable of storing 3000 to 5000 Wh (3 to 5 kWh). It is always recommended to include a margin for less sunny days or higher consumption peaks. LiFePO4 lithium batteries are perfectly suited for this use: they allow deep discharges without risk of damage and can be recharged quickly once the sun returns. They also retain their storage capacity even after several years of use, making them the best option for users seeking reliable and durable autonomy.