XCELL XCELFP1212S LiFePO₄ battery with 12.8 V and 12 Ah

The XCELL LFP126 is a compact lithium iron phosphate battery (LiFePO₄) with 12 V nominal voltage and 6 Ah capacity. Thanks to its integrated protection circuit (PCM/BMS), it impresses with its high level of safety, long service life and reliable performance, even under demanding operating conditions. With over 2000 charge cycles at 80% depth of discharge, the battery is ideal for applications in emergency power systems, mobile devices, energy storage systems and industrial applications that place the highest demands on safety and stability.Highlights at a glanceReliable energy: 6 Ah capacity at 12.8 V – 76.8 Wh total energyDurable: Over 2000 charge cycles at 80 % DODBMS integrated: Protection against overcharging, deep discharge, overcurrent, short circuit and temperature errorsCompact & lightweight: Dimensions 151 × 65 × 95 mm, weight only approx. 0.9 kgFast charging capability: Maximum charging capacity up to 6 APowerful in a wide range of applicationsWith its low weight and compact dimensions, the XCELL LFP126 can be used flexibly. It is suitable for mobile energy storage, emergency power systems, rehabilitation and medical technology, alarm systems or as a reliable energy source for modelling, control technology and other industrial applications. Thanks to its robust design and wide operating temperature range of -20 °C to +55 °C, the battery is also ideally suited for outdoor use.Efficiency and safety with a systemThe integrated BMS (Protection Circuit Management) continuously monitors voltage, current and temperature. It reliably protects against over-discharge, deep discharge, short circuits and overcurrent, thus contributing to a longer service life and safe operation. This makes the XCELL LFP126 a maintenance-free and sustainable solution for long-lasting energy storage.Robust LiFePO₄ technologyThe LiFePO₄ cells used, type 32650 (6 Ah), are characterised by high cycle stability, thermal stability and low self-discharge. Compared to lead or conventional lithium batteries, this cell technology offers significantly greater safety and durability.Features  ModelXCELL LFP126 Battery typeLiFePO₄ (lithium iron phosphate) Rated voltage (V)12.8 Capacity (Ah)6 Maximum discharge current6A (continuous) Recommended charging voltage14.4V - 14.6V Trickle charging13.6V - 13.8V Operating temperature (°C)Charge: 0 ~ 45 / Discharge: -20 ~ 60 Storage temperature (°C)-10 ~ 35 Battery life>2000 cycles at 100% depth of discharge Dimensions (L/W/H, mm)151 x 65 x 100 Weight (kg)approx. 0.8 ConnectionFaston 250 (6.35 mm) Protection circuitIntegrated BMS  FAQs about the XCELL LFP126 LiFePO₄ batteryHow many charging cycles does the XCELL LFP126 offer?The battery achieves over 2000 charge cycles at 80% depth of discharge and therefore offers a service life of over 10 years.Is in the XCELL LFP126 a battery management system (BMS) integrated?Yes, the battery has an integrated BMS that protects against overcharging, deep discharge, short circuits and overtemperature.What applications is the battery suitable for?The XCELL LFP126 is ideal for emergency power systems, mobile devices, alarm systems, rehabilitation and medical technology, modelling and industrial energy storage.Is the battery classified as dangerous goods?No, the battery fulfils the safety requirements according to UN38.3, CE and MSDS and is not considered a classic dangerous good.Can the XCELL LFP126 battery be charged quickly?Yes, with a maximum charging current of 6 A, the battery can be charged quickly.Can the XCELL LFP126 battery be charged with conventional chargers for lead-acid batteries?Yes, thanks to the integrated BMS, charging with standard lead-acid battery chargers is possible without any problems.

The XCELL XCELFP129 is a compact and powerful 12.8 V lithium iron phosphate battery (LiFePO₄) with a capacity of 9 Ah, ensuring reliable power supply. Its integrated battery management system (BMS) guarantees safety, longevity, and high charging efficiency. With over 2000 charge cycles at 80% depth of discharge (DOD), it is a sustainable solution for demanding mobile and stationary applications.Highlights at a glanceCompact energy: 9 Ah capacity at 12.8 V – 115.2 Wh total energyDurable: More than 2000 charge cycles at 80% DODBMS integrated: Protection against overcharging, deep discharge, short circuit and overtemperatureFlexible in use: Parallel connection of up to 2 batteries, serial connection of up to 4 batteries possibleFast charging capability: Efficient charging with up to 9 APowerful in a wide range of applicationsWith its compact dimensions (151 × 65 × 93.5 mm) and a weight of only approx. 1.1 kg, the XCELFP129 is very versatile. It is an excellent alternative to VRLA batteries and is ideally suited for a wide range of applications. These include emergency power systems, portable energy storage, rehabilitation and medical technology, solar storage solutions, alarm systems as well as caravan and marine systems. Even at extreme temperatures from -20°C to +55°C, it delivers stable performance.Efficiency and safety with a systemThe integrated hardware BMS monitors all relevant parameters such as voltage, temperature and current flow, thus ensuring safe operation. It protects against typical risks such as overcharging, deep discharge or short circuit and increases the service life of the cells. Thanks to maintenance-free LiFePO₄ technology, the battery is also gas-free, insensitive to deep discharge and particularly safe.Robust LiFePO₄ technologyThe XCELFP129 is based on cylindrical LiFePO₄ cells of type 21700 (3 Ah), which ensure high thermal stability, long service life and consistent performance. Compared to lead-acid or conventional lithium batteries, LiFePO₄ cells excel in safety, efficiency, and significantly higher cycle stability.Features  ModelXCELL LFP129 Battery typeLiFePO₄ (lithium iron phosphate) Nominal voltage (V)12.8 Capacity (Ah)9 Maximum discharge current9A (continuous) Recommended charging voltage14.4V - 14.6V Trickle charge13.6V - 13.8V Operating temperature (°C)Charging: 0 ~ 45 / Discharging: -20 ~ 60 Storage temperature (°C)-10 ~ 35 Service life>2000 cycles at 100% depth of discharge Dimensions (L/W/H, mm)151 x 65 x 100 Weight (kg)approx. 1.1 ConnectionFaston 250 (6.35 mm) Protection circuitIntegrated BMS  FAQs about the XCELL XCELFP129 LiFePO₄ batteryHow many charge cycles does the XCELL XCELFP129 offer?The battery achieves over 2000 charge cycles at 80% depth of discharge and thus offers a service life of more than 10 years.Can multiple batteries be connected together?Yes, up to 2 batteries can be connected in parallel and up to 4 batteries in series – ideal for flexible storage solutions.For which applications is the battery suitable?The XCELFP129 is suitable for solar storage solutions, emergency power systems, rehabilitation and medical technology, alarm systems, caravan and marine applications as well as a replacement for VRLA batteries.What technology does the XCell LFP129 use, and what protection functions are integrated?It is based on lithium iron phosphate technology (LiFePo₄) and contains an integrated hardware BMS (battery management system) that provides protection against overcharging, deep discharge, overtemperature and short circuit.Is the battery compatible with conventional chargers for lead-acid batteries?Yes, the protection circuit (BMS) allows charging with standard chargers for lead-acid batteries.Is the XCell LFP129 maintenance-free, safe and lighter than comparable lead-acid batteries?Yes, it is maintenance-free, offers a very high level of intrinsic safety (no risk of explosion even under extreme conditions), and weighs about a third less than comparable lead-acid batteries.

The XCELL XCELFP1218 is a compact and powerful lithium iron phosphate battery (LiFePO₄) that impresses with a nominal voltage of 12.8 V and a capacity of 18 Ah. Equipped with an integrated battery management system (BMS), it offers reliable protection against overcharging, deep discharge, short circuit and overtemperature. Thanks to its high cycle stability of over 2000 charge cycles at 80% depth of discharge, it is a long-lasting and safe energy storage solution for a wide range of applications.Highlights at a glancePowerful: 18 Ah capacity at 12.8 V – 230.4 Wh total energyDurable: More than 2000 charge cycles at 80 % DODBMS integrated: Comprehensive protection for maximum safetyCompact dimensions: 151 × 98 × 95 mm at only 1.96 kg weightFast charging capability: Maximum charging current up to 18 APowerful in a wide range of applicationsWith its high energy density and compact dimensions, the XCELFP1218 is ideal for mobile energy storage, UPS systems, caravan and marine applications as well as solar storage solutions. Thanks to its robust design and the wide operating temperature range from -20 °C to +55 °C, it is also ideally suited for use under harsh conditions. For larger energy systems, it can be combined with up to 2 batteries in parallel or up to 4 batteries in series.Efficiency and safety with a systemThe integrated hardware BMS continuously monitors voltage, current and temperature and reliably protects the battery against malfunctions. It thus makes a significant contribution to a longer service life and safe operation. Maintenance-free, gas-free and with high charging efficiency, the XCELFP1218 is a future-proof solution for demanding energy storage systems.Robust LiFePO₄ technologyThe battery is based on cylindrical LiFePO₄ cells of type 32700 (6 Ah), which are characterised by thermal stability, low self-discharge and high consistency. Compared to classic lead or lithium batteries, the LiFePO₄ technology offers a significantly higher level of safety as well as a long service life.Features  ModelXCELL XCELFP1218 Battery typeLiFePO₄ (lithium iron phosphate) Nominal voltage (V)12.8 Capacity (Ah)18 Maximum discharge current18A (continuous) Recommended charging voltage14.4V - 14.6V Trickle charging13.6V - 13.8V Operating temperature (°C)Charging: 0 ~ 45 / Discharging: -20 ~ 60 Storage temperature (°C)-10 ~ 35 Service life>2000 cycles at 100% depth of discharge Dimensions (L/W/H, mm)181 x 77 x 167 Weight (kg)approx. 2.2 ConnectionM5 screw connection Protection circuitIntegrated BMS  FAQs about the XCELL XCELFP1218 LiFePO₄ batteryHow many charge cycles does the XCELFP1218 offer?The battery achieves over 2000 charge cycles at 80% depth of discharge (DOD) and thus offers a service life of more than 10 years.Is a battery management system (BMS) integrated?Yes, the integrated BMS reliably protects against overcharging, deep discharge, short circuits and overtemperature.Can several XCELFP1218 batteries be connected together?Yes, up to 2 batteries can be combined in parallel and up to 4 batteries in series.For which applications is the XCELFP1218 battery suitable?The XCELFP1218 is particularly suitable for solar storage solutions, caravan and marine systems, emergency power supplies and UPS systems.Is the XCELFP1218 battery classified as dangerous goods?No, the battery meets the requirements according to UN38.3, CE and MSDS and is not considered classic dangerous goods.Can the XCELFP1218 battery be charged with standard chargers for lead-acid batteries?Yes, the BMS protection circuit enables charging with commercially available chargers for lead-acid batteries. 

The Tadiran SL-750S is a primary high-performance lithium thionyl chloride battery in the extremely compact 1/2 AA format. It has been developed for maximum reliability and a very long service life in miniaturised and space-constrained applications. With a nominal voltage of 3.6 V and a capacity of 1.0 Ah, it is the ideal energy solution for professional electronics that require maximum performance in a minimum of space. This model is the standard version for use in suitable battery holders.Highlights at a glanceExtremely compact form factor: 1/2 AA size for maximum miniaturisation of your application.Reliable capacity: 1.0 Ah for a long and self-sufficient operating time.High nominal voltage: Stable voltage of 3.6 V during almost the entire service life.Maximum reliability: Extremely low self-discharge rate of under 1% per year.Outstanding longevity: Designed for an operational and storage life of over 10 years.Extensive temperature range: Fully functional in a temperature range from -55°C to +85°C.Powerful in a wide range of applicationsThe Tadiran SL-750S is your first choice when space is the limiting factor. Its extremely small form factor makes it indispensable for compact sensors, medical devices (e.g. in diagnostics), memory backups (RTC, CMOS) on densely packed circuit boards, and for military applications. It is perfectly suited to all devices that require a long-lasting and reliable energy source, but do not offer space for a standard AA cell.Engineered for maximum safety and efficiencyThe safety and longevity of the SL-750S are based on its well-conceived construction. The cell features a hermetic glass-to-metal seal that reliably prevents the leakage of electrolyte. The inorganic electrolyte used is non-flammable and provides a high level of intrinsic safety. Every cell is designed to release its energy consistently and safely over a very long period, minimising maintenance costs and reducing the total cost of ownership of your application.Superior lithium thionyl chloride technologyLithium thionyl chloride technology (Li-SOCl₂) offers decisive advantages for long-term use. A characteristic feature is the passivation effect: a thin protective layer forms on the lithium anode, drastically reducing self-discharge and thus allowing for extremely long shelf life. This technology ensures that the energy is still almost fully available even after years of storage, setting the SL-750S apart from all other battery technologies. Features  ModelTadiran SL-750/S TechnologyLithium thionyl chloride (Li-SOCl₂) Size1/2 AA Nominal voltage (V)3.6 Capacity (mAh)1000 Max. continuous discharge current30 mA Self-dischargeapprox. 1% per year Operating temperature (°C)-55 ~ +85 Dimensions (Ø x L, mm)approx. 14.7 x 25.2 Weight (g)approx. 9 ConnectionStandard (industrial head) RechargeableNo  FAQs about this Tadiran batteryIs this battery rechargeable?No, this is a primary lithium battery and must not be recharged under any circumstances. Attempting to charge the cell is dangerous and can lead to overheating, leakage or bursting of the cell.Does this model have solder tags or wires?No, the model SL-750S is the standard version with conventional battery contacts and is intended for use in a suitable 1/2 AA battery holder. For direct installation on circuit boards, Tadiran offers variants of this cell type with different solder tags.What does the passivation effect mean for this battery?After prolonged storage, a protective layer forms on the lithium surface that minimises self-discharge. At initial load, this layer can cause a short voltage delay. For applications that require immediate high pulse currents, appropriate circuit designs or special battery types should be considered.What devices is this battery type suitable for?This battery type is designed exclusively for professional and industrial electronics with very limited space. This includes compact sensors, memory backup, compact medical devices, and demanding location systems.How long does the battery last and how should it be stored?The battery has a shelf life of over 10 years. For maximum longevity, we recommend storing it in a cool, dry place with low humidity. 

The XCELL XCELFP1224 is a long-lasting and safe lithium iron phosphate battery (LiFePO₄) for mobile and stationary energy storage. It offers a nominal voltage of 12.8 V and a capacity of 24 Ah. An integrated battery management system (BMS) provides comprehensive protection against overcharging, deep discharge, short circuit and overtemperature. With over 2000 cycles at 80% depth of discharge (DOD), the battery is characterised by a long service life.Highlights at a glancePowerful: 24 Ah capacity at 12.8 V – 307.2 Wh total energyDurable: Over 2000 cycles at 80% depth of dischargeBMS integrated: Comprehensive protection during charge and discharge operationsRobust: ABS housing, ideal as a replacement for VRLA batteriesFast charging capability: Up to 24 A charging current possiblePowerful in a wide range of applicationsThe XCELFP1224 is characterised by its high energy density and compact size (181 × 77 × 167 mm at just 3.8 kg), making it extremely versatile. It is ideal for solar storage solutions, UPS systems, caravan and marine applications as well as emergency power and rehabilitation equipment. Thanks to its wide temperature range from -20 °C to +55 °C, the battery guarantees reliable performance even in extreme conditions. For larger storage systems, it can be combined with up to 2 batteries in parallel and up to 4 batteries in series.H2: Efficiency and safety with a systemThe integrated hardware BMS continuously monitors voltage, current and temperature and protects the battery from faults. This not only increases operational safety, but also extends the service life. Maintenance-free, gas-free and deep-discharge proof, the XCELFP1224 is a modern and sustainable energy storage solution.Robust LiFePO₄ technologyThe cylindrical LiFePO₄ cells of type 32700 (6 Ah) used stand for high stability, low self-discharge and long service life. Compared to conventional lead-acid or lithium batteries, the LiFePO₄ technology offers greater safety, higher cycle stability and a reliable power output even under high loads.Features  ModelXCELL XCELFP1218 Battery typeLiFePO₄ (lithium iron phosphate) Nominal voltage (V)12.8 Capacity (Ah)18 Maximum discharge current18A (continuous) Recommended charging voltage14.4V - 14.6V Float charge13.6V - 13.8V Operating temperature (°C)Charge: 0 ~ 45 / Discharge: -20 ~ 60 Storage temperature (°C)-10 ~ 35 Service life>2000 cycles at 100% depth of discharge Dimensions (L/W/H, mm)181 x 77 x 167 Weight (kg)approx. 2.2 ConnectionM5 screw connection Protection circuitIntegrated BMS  FAQs about the XCELL XCELFP1224 LiFePO₄ batteryHow many cycles does the XCELFP1224 provide?The battery achieves over 2000 cycles at 80% depth of discharge, which corresponds to a service life of more than 10 years.Can several XCELFP1224 batteries be connected together?Yes, up to 2 batteries can be operated in parallel and up to 4 batteries in series.For which applications is the XCELFP1224 battery suitable?The XCELFP1224 is ideal for solar storage, UPS systems, caravan and marine applications, as well as for emergency power and rehabilitation equipment.Is the battery classified as hazardous goods?No, the battery meets the requirements of UN38.3, CE and MSDS and is not considered typical hazardous goods.Which technology is used and which protection mechanisms are integrated?This is a lithium iron phosphate battery with integrated hardware BMS, offering protection against overcharging, deep discharge, overtemperature and short circuit, as well as ensuring a high level of intrinsic safety.In which temperature ranges can the XCELFP1224 battery be used?It can be used at temperatures from −20 °C to +55 °C. 

The OPTIMA RedTop RT S 2.1 is a revolutionary 6-volt high-performance starter battery that, thanks to patented SPIRALCELL TECHNOLOGY®, delivers maximum starting power in a compact and extremely rugged case. With a nominal voltage of 6 V and an enormous cold cranking current of 800 A for this class, it is the ultimate solution for classic vehicles and demanding applications that require a reliable and powerful 6-volt energy source. Its extreme vibration resistance and absolutely maintenance-free, leakproof design make it the first choice for classic cars, hot rods and tractors.Highlights at a glanceMaximum 6V starting power: Offers the highest possible starting performance for reliable engine starts, even in large-displacement 6-volt engines.SPIRALCELL TECHNOLOGY®: Unique spiral cell construction for extreme vibration resistance and a longer service life.Extreme vibration resistance: Up to 15 times more vibration-resistant than conventional batteries, ideal for use in older vehicles without modern suspension.Absolutely maintenance-free and leakproof: The sealed AGM construction allows installation in almost any position and prevents paint damage caused by acid leakage.Long service life: Lasts up to three times longer than a conventional 6-volt starter battery.Maximum performance for classic vehiclesThe OPTIMA RedTop RT S 2.1 was specifically developed to bring the performance and reliability of modern technology to classic 6-volt vehicles. It is the ideal choice for classic cars, classic vehicles, hot rods and historic agricultural vehicles, which often have engines that are difficult to start. Even after longer periods of inactivity, as is typical for collector's vehicles, it reliably supplies the necessary power for an effortless start.Superior SPIRALCELL TECHNOLOGY®At the heart of every OPTIMA battery is the unique SPIRALCELL TECHNOLOGY®. Instead of flat lead plates, high-purity lead spirals are used, wrapped in glass fiber fleece (AGM). This compact and extremely stable design minimizes plate spacing, maximizes active surface area and reduces internal resistance. The result is unrivaled starting performance that can be consistently delivered even under the harshest conditions.Built for the most demanding conditionsThe OPTIMA RedTop is designed for tough use. Its sealed construction not only prevents acid leakage, which is especially important in valuable classics, but also evaporation, making it absolutely maintenance-free. The rugged construction made of impact-resistant polypropylene and the extreme vibration resistance ensure that vibrations and shocks cannot harm the battery. Features  ModelOPTIMA RedTop RT S 2.1 TechnologyAGM Spiralcell Nominal voltage (V)6 Capacity (Ah)50 Cold cranking current EN (A)815 Dimensions (L x W x H in mm)254 x 90 x 206 ConnectionSAE-Autopol Weight (kg)approx. 8.5  FAQs about the OPTIMA RedTop 6V batteryWhat is the main advantage of SPIRALCELL TECHNOLOGY® in a classic car?In classic vehicles, spiral cell technology offers two decisive advantages: first, extreme vibration resistance, which is of great benefit in older chassis. Secondly, it is absolutely leakproof, which protects valuable paint and body parts from acid damage, a common problem with old wet batteries.What is the difference between OPTIMA RedTop, YellowTop and BlueTop?RedTop: A pure high-performance starter battery for maximum starting power. Ideal for vehicles where starting is the main load. YellowTop: A 12-volt dual-purpose battery (starting and supplying) for vehicles with high energy requirements due to additional consumers. BlueTop: A 12-volt special battery for marine and leisure vehicles.Do I need a special charger for this 6V AGM battery?Yes, it is very important to use a modern, microprocessor-controlled charger that is suitable for both 6 volts and AGM technology. Old, unregulated 6-volt chargers can damage the battery due to overvoltage.Can this battery be deeply discharged?The RedTop is designed as a pure starter battery and should not be deeply discharged, as this can shorten its service life. For applications where power is regularly required for consumers at a standstill (e.g. a music system), a YellowTop or BlueTop battery (which are only available in 12V) would be the right choice.How should this lead-acid battery be disposed of?Lead-acid batteries contain environmentally harmful substances and must not be disposed of in household waste. You can return your old battery free of charge to any retailer selling new batteries or municipal recycling centers to ensure proper recycling.