Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system. I was genuinely surprised by how quickly this battery charges from my solar controller compared with the old lead-acid unit, because the higher charging efficiency means it reaches full capacity in a fraction of the time, and the 100A continuous charge current lets me make the most of every sunny hour, which has effectively doubled my usable operating time during the day. On a camp table beside a portable fridge, it powers fridge, lights and phones for a whole weekend before needing a charge. The battery supports parallel and series building. 4P4S means four units in parallel × four in series: 16 units total = 20.48 kWh . 4S raises the voltage to 51.2 V ; 4P raises the capacity to 400 Ah (51.2 V × 400 Ah = 20,480 Wh). On a camp table beside a portable fridge, it powers fridge, lights and phones for a whole weekend before needing a charge. The battery supports parallel and series building. 4P4S means four units in parallel × four in series: 16 units total = 20.48 kWh . 4S raises the voltage to 51.2 V ; 4P raises the capacity to 400 Ah (51.2 V × 400 Ah = 20,480 Wh). The table compares usable energy, cycle life and weight in the same 12V class; October 2026 prices are approximate. When designing an off-grid or hybrid system, start from real daily consumption: list every permanent and starting appliance, its rated power and run time, then build a daily energy budget in Wh. Only after that choose the inverter, PV array and battery; buying the equipment first and sizing the load later leads to undersizing or needlessly high cost. Homes, caravans, holiday cabins and workshops have different load profiles, so a generic recommendation for a fridge, pump or heat pump is always individual. Wi-Fi and monitoring let you track voltage, power, charge current and battery state directly on a phone or computer. The app shows daily gain, consumption and history, so you can spot overload or a failing cell before a fault. Daytime battery-free running with clear sun is practical, but overnight and continuous backup need the battery bank; monitoring helps distinguish array-only running from battery running.

You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power. Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system. Mounted on a shed shelf, it stores energy from a small solar array and cycles daily — the IP65 case shrugs off damp workshop air. Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later. Mounted on a shed shelf, it stores energy from a small solar array and cycles daily — the IP65 case shrugs off damp workshop air. Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later. The table shows approximate runtime at 80% DoD without losses; the BMS caps continuous discharge at 100A. The MPPT charge controller is the heart of solar charging: it tracks the maximum-power point of the panels and adjusts voltage so the battery receives as much energy as possible. Compare not only the total controller current but also the panel-voltage range and the module wattage it accepts; an undersized MPPT does no damage but limits array harvest. Wire panels in series or parallel so the working voltage falls inside the controller range, respecting insulation and fuses on the PV side. Maintenance extends equipment life: check terminal torque, ventilation cleanliness and cooling regularly in a dry, airy room free of damp and dust. Watch charge voltage and any cell heating, and after a few years confirm battery condition and connection tightness. Avoid high humidity, dust or frost risk; respect the operating and storage temperatures stated in the manual.

No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather. You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power. Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later. These are the ten accurate official images (main unit first). Three infographics are deliberately excluded: one overstates "8000 deep cycles" and shows the larger siblings, one prints "500A for 1 second" (the correct pulse is 400A/1s), and one prints a dimension of 330×245×290 mm (the correct manual dimension is 315×215×280 mm). Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later. These are the ten accurate official images (main unit first). Three infographics are deliberately excluded: one overstates "8000 deep cycles" and shows the larger siblings, one prints "500A for 1 second" (the correct pulse is 400A/1s), and one prints a dimension of 330×245×290 mm (the correct manual dimension is 315×215×280 mm). Configuration options: parallel adds capacity at 12.8V, series raises voltage. The battery provides the reserve for cloudy days and night operation. Its capacity is chosen from daily consumption and the desired autonomy days, respecting the depth of discharge of the chemistry. Lead-acid tolerates shallower depth and more frequent top-ups; LiFePO4 accepts deeper cycles. Regardless of chemistry, care for equal cell voltage, the correct charge profile and current sizing, because a mismatched profile shortens life more than the cycles themselves. When comparing models, match the same class: continuous kW, starting peak, MPPT current and range, acceptable PV wattage, battery input voltage, number of outputs and Wi-Fi connection. The listing name may not match true continuous power, so read the manual table and rating plate. A cheaper model with a smaller MPPT or no monitoring can behave worse under real load, so total value depends on the sum of parameters, not the ad slogan.

Based on 1280 Wh divided by the load: a 50W LED/phone load runs ~25.6h, a 100W laptop-and-lights load ~12.8h, a 120W router-and-fan load ~10.67h, a 300W compressor fridge ~4.27h, a 500W fridge+TV+fan load ~2.56h, a 600W load ~2.13h, an 800W load ~1.6h and a 1000W load ~1.28h. When running through a 12V inverter, derate by about 90–95% inverter efficiency and leave headroom on depth of discharge. No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather. On a caravan bench shelf it supplies lighting, the charger and the small kitchen loads for a static pitch — no maintenance, no venting. Verbatim buyer reviews as submitted on Judge.me. The three buyer photos submitted with the reviews are shown below: two from Lukas Weber (the unboxing and the M8 terminals with the printed manual) and one from Erik Lindgren (a clean unit on a work surface). A fourth photo that showed a white-label close-up label is intentionally not reproduced. On a caravan bench shelf it supplies lighting, the charger and the small kitchen loads for a static pitch — no maintenance, no venting. Verbatim buyer reviews as submitted on Judge.me. The three buyer photos submitted with the reviews are shown below: two from Lukas Weber (the unboxing and the M8 terminals with the printed manual) and one from Erik Lindgren (a clean unit on a work surface). A fourth photo that showed a white-label close-up label is intentionally not reproduced. Parameters follow the manual; the spec sheet prevails on conflict. Cables and fuses are often underestimated but are a decisive part of a safe installation. At the battery's low voltage the current is high, so conductors must be short, thick and sized by current and length, keeping voltage drop and heating within normal limits. On every safety boundary (battery, panel, output) use a properly rated fuse and isolator switches; an undersized cable can overheat, and the fuse protects against short circuit and fire. European availability and logistics affect delivery speed and return conditions. Confirm warehouse location, estimated lead time, return rules and spare-parts/support availability before buying. Prices in EUR may be shown without hidden fees, but the final price, duties and local taxes are always confirmed by the checkout. Warranty terms and the possibility of support matter more than a single monthly discount badge.

Yes. The maximum configuration is 4P4S: four in parallel times four in series = 16 units, giving 51.2V and 400Ah for 20.48 kWh. When building a bank, use units that are identical in model and matched within about one month of production / charge history; do not mix new and heavily-used units, and keep the whole bank on the 14.4V charge profile with the 10V cut-off. Based on 1280 Wh divided by the load: a 50W LED/phone load runs ~25.6h, a 100W laptop-and-lights load ~12.8h, a 120W router-and-fan load ~10.67h, a 300W compressor fridge ~4.27h, a 500W fridge+TV+fan load ~2.56h, a 600W load ~2.13h, an 800W load ~1.6h and a 1000W load ~1.28h. When running through a 12V inverter, derate by about 90–95% inverter efficiency and leave headroom on depth of discharge. A remote cabin relies on it for warm light, a kettle and a phone after the panels stop generating at dusk. I did the maths before buying and this battery easily pays for itself when you compare the ten year lifespan and zero maintenance against the cost of replacing lead-acid batteries every couple of years, and after several months of regular use in my motorhome it still performs exactly as it did on day one, and the fact that it is so much lighter also improved my fuel consumption slightly, which is a nice bonus I had not even considered. A remote cabin relies on it for warm light, a kettle and a phone after the panels stop generating at dusk. I did the maths before buying and this battery easily pays for itself when you compare the ten year lifespan and zero maintenance against the cost of replacing lead-acid batteries every couple of years, and after several months of regular use in my motorhome it still performs exactly as it did on day one, and the fact that it is so much lighter also improved my fuel consumption slightly, which is a nice bonus I had not even considered. Strapped into a motorhome under-seat locker, it runs the fridge, lights and chargers for days — the ~9.8 kg weight saving also helps fuel economy. The GSIKE 12.8V 100Ah LiFePO4 battery stores 1280Wh of deep-cycle power in a 9.8kg ABS case — a 100A BMS, 6000 cycles at 80% depth of discharge, a 14.4V CC/CV charge profile and IP65 protection give it roughly twice the usable energy of a 12V 100Ah lead-acid battery at about one third of the weight, expandable up to a 16-unit / 20.48kWh bank and sold across Europe at €159.99 struck from a real €250.00 regular price (36% off, Save €90.01), with free delivery and a 30-day return window.

No. It is an energy-storage battery — it stores 12-volt DC power and releases it. It has no built-in charger and no built-in inverter, so it has no mains AC outlet. To charge it you need a 14.4V LiFePO4 charger or solar controller; to run 230V appliances you connect a separate 12V inverter. The 400A rating is a one-second pulse for startup inrush, not a continuous output. Yes. The maximum configuration is 4P4S: four in parallel times four in series = 16 units, giving 51.2V and 400Ah for 20.48 kWh. When building a bank, use units that are identical in model and matched within about one month of production / charge history; do not mix new and heavily-used units, and keep the whole bank on the 14.4V charge profile with the 10V cut-off. On a workbench it runs bench lighting, a 12V pump and a charger off-grid — the 10V cut-off protects the cells from deep drains. The most impressive thing about this battery is just how compact and light it is for the amount of power it delivers, because it weighs a fraction of the equivalent lead-acid battery while providing twice the usable energy, and after two months of daily use in my caravan I can honestly say it has been flawless, with the Easun BMS quietly protecting against over-charging and over-discharging without me ever having to think about it. On a workbench it runs bench lighting, a 12V pump and a charger off-grid — the 10V cut-off protects the cells from deep drains. The most impressive thing about this battery is just how compact and light it is for the amount of power it delivers, because it weighs a fraction of the equivalent lead-acid battery while providing twice the usable energy, and after two months of daily use in my caravan I can honestly say it has been flawless, with the Easun BMS quietly protecting against over-charging and over-discharging without me ever having to think about it. The constant 100A discharge gives an electric trolling motor full thrust without sag — buyers report a full day of fishing on one charge. Same nominal 12V and 100Ah, very different usable energy. Because LiFePO4 safely delivers close to its full capacity while flooded lead-acid is typically limited to about 42% depth of discharge, one GSIKE 12.8V 100Ah replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V — never in series, which would make 24V).

No. This is a 12V leisure / deep-cycle battery rated for RV, camper, caravan, boat/trolling-motor, camping, off-grid solar and home-backback use. It is not designed for the high continuous drive-current profile of a golf cart. Choose a purpose-built traction battery for that application. No. It is an energy-storage battery — it stores 12-volt DC power and releases it. It has no built-in charger and no built-in inverter, so it has no mains AC outlet. To charge it you need a 14.4V LiFePO4 charger or solar controller; to run 230V appliances you connect a separate 12V inverter. The 400A rating is a one-second pulse for startup inrush, not a continuous output. Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system. I was genuinely surprised by how quickly this battery charges from my solar controller compared with the old lead-acid unit, because the higher charging efficiency means it reaches full capacity in a fraction of the time, and the 100A continuous charge current lets me make the most of every sunny hour, which has effectively doubled my usable operating time during the day. Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system. I was genuinely surprised by how quickly this battery charges from my solar controller compared with the old lead-acid unit, because the higher charging efficiency means it reaches full capacity in a fraction of the time, and the 100A continuous charge current lets me make the most of every sunny hour, which has effectively doubled my usable operating time during the day. On a camp table beside a portable fridge, it powers fridge, lights and phones for a whole weekend before needing a charge. The battery supports parallel and series building. 4P4S means four units in parallel × four in series: 16 units total = 20.48 kWh . 4S raises the voltage to 51.2 V ; 4P raises the capacity to 400 Ah (51.2 V × 400 Ah = 20,480 Wh).

The built-in 100A BMS guards against over-charge, over-discharge, over-current, over-temperature and short-circuit events, with the discharge cutting off around 10V. It allows 100A continuous charge and 100A continuous discharge, and a 400A pulse for one second to absorb motor or fridge startup inrush without sagging. Self-discharge stays under 3% per month. No. This is a 12V leisure / deep-cycle battery rated for RV, camper, caravan, boat/trolling-motor, camping, off-grid solar and home-backback use. It is not designed for the high continuous drive-current profile of a golf cart. Choose a purpose-built traction battery for that application. You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power. Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system. You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power. Yes, for the same usable 12V capacity. One GSIKE 12.8V 100Ah delivers ~1216–1280 usable Wh at ~95–100% depth of discharge, whereas a 12V 100Ah flooded lead-acid is limited to about 42% DoD — roughly 504 usable Wh. So one GSIKE replaces two 12V 100Ah lead-acid batteries wired in parallel (same 12V). Do not wire them in series, which would produce 24V and is a different system. Mounted on a shed shelf, it stores energy from a small solar array and cycles daily — the IP65 case shrugs off damp workshop air. Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later.

It uses M8 bolt terminals (8 mm bolt, 12 mm nut). Fit ring (lug) terminals sized for your cable current and keep runs short to limit voltage drop — especially at 12V, where high currents make cable thickness matter. For a 16-unit 51.2V / 400Ah bank, follow the matched-battery wiring guide and the 14.4V charge profile. The built-in 100A BMS guards against over-charge, over-discharge, over-current, over-temperature and short-circuit events, with the discharge cutting off around 10V. It allows 100A continuous charge and 100A continuous discharge, and a 400A pulse for one second to absorb motor or fridge startup inrush without sagging. Self-discharge stays under 3% per month. No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather. You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power. No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather. You need a lithium / LiFePO4-capable charger or solar controller set to CC/CV at 14.4V ±0.2V, with a recommended charge current of 20A (0.2C; the BMS allows up to 100A). A legacy lead-acid charger that only floats at 13.5–13.8V without a LiFePO4 charge profile will not fully charge this battery. The battery itself is not a charger — it only stores and releases power. Kept in a utility closet, it carries lights, the router and a few essential appliances through an evening outage, and grows into a larger 20.48 kWh bank later. These are the ten accurate official images (main unit first). Three infographics are deliberately excluded: one overstates "8000 deep cycles" and shows the larger siblings, one prints "500A for 1 second" (the correct pulse is 400A/1s), and one prints a dimension of 330×245×290 mm (the correct manual dimension is 315×215×280 mm).

The price is €159.99 EUR struck from €250.00 (36% off, Save €90.01), in stock and new. Shipping is free to 15 European countries (GB, DE, FR, IT, ES, NL, BE, AT, SE, DK, FI, IE, PT, PL, CZ) with 1–3 days handling plus 2–7 days transit, and returns run for 30 days by post. The warranty is 3 years against a ~10-year design life, so the covered period is shorter than the expected service life at light use — factor that into your total-cost-of-ownership plan. It uses M8 bolt terminals (8 mm bolt, 12 mm nut). Fit ring (lug) terminals sized for your cable current and keep runs short to limit voltage drop — especially at 12V, where high currents make cable thickness matter. For a 16-unit 51.2V / 400Ah bank, follow the matched-battery wiring guide and the 14.4V charge profile. Based on 1280 Wh divided by the load: a 50W LED/phone load runs ~25.6h, a 100W laptop-and-lights load ~12.8h, a 120W router-and-fan load ~10.67h, a 300W compressor fridge ~4.27h, a 500W fridge+TV+fan load ~2.56h, a 600W load ~2.13h, an 800W load ~1.6h and a 1000W load ~1.28h. When running through a 12V inverter, derate by about 90–95% inverter efficiency and leave headroom on depth of discharge. No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather. Based on 1280 Wh divided by the load: a 50W LED/phone load runs ~25.6h, a 100W laptop-and-lights load ~12.8h, a 120W router-and-fan load ~10.67h, a 300W compressor fridge ~4.27h, a 500W fridge+TV+fan load ~2.56h, a 600W load ~2.13h, an 800W load ~1.6h and a 1000W load ~1.28h. When running through a 12V inverter, derate by about 90–95% inverter efficiency and leave headroom on depth of discharge. No — the charge window is 0°C to 50°C and the BMS stops charging around 55°C. Do not charge below 0°C. Discharge works down to −20°C, and storage should be between −10°C and 50°C at roughly 50% charge. Unlike some self-heating competitors, this unit has no low-temperature charging function, so warm the space before charging in cold weather. On a caravan bench shelf it supplies lighting, the charger and the small kitchen loads for a static pitch — no maintenance, no venting. Verbatim buyer reviews as submitted on Judge.me. The three buyer photos submitted with the reviews are shown below: two from Lukas Weber (the unboxing and the M8 terminals with the printed manual) and one from Erik Lindgren (a clean unit on a work surface). A fourth photo that showed a white-label close-up label is intentionally not reproduced.