【EV Grade A Cells & True Capacity】 Techex 12V 320Ah LiFePO4 battery is built with automotive-grade A+ cells, featuring excellent voltage balance, ultra-low self-discharge, and stable performance. Delivers more than 320Ah actual capacity — more usable power than rated. Compact size (13.58×7.48×9.64 in) and 58.43 lbs weight make it perfect for RVs, off-grid systems, and trolling motors 【【200A BMS & High Power Output】 Equipped with a robust 200A smart BMS, this battery supports up to 300A peak discharge for 10s, ideal for high-power appliances and motor startups. It auto-recovers from overload protection within 30 seconds, ensuring continuous operation without power drop. With -20°C/-4°F to 60°C/140°F discharge range and charging cut-off below 0°C/32°F, it’s built to perform safely in extreme conditions 【Smart Bluetooth Monitoring & Easy Setup】 Built-in Bluetooth allows you to monitor battery status in real time via your smartphone — no need to remove the battery or install extra monitors. Easy to set up with no complex wiring 【Upgraded Internal Protection & Stability】 Designed with enhanced safety in mind, the battery features an insulated sleeve on the negative wire to prevent abrasion and protect internal circuits. Extended adhesive curing time ensures a more stable and secure internal structure, reducing risk of damage over time and improving long-term durability 【Fast Charging & Tips】 Supports 20A–160A charging current and fast charging with a 14.6V 50A LiFePO4 charger, fully recharging in just 6.4 hours. For deeply discharged batteries, we recommend using a charger with 0V activation to restore power safely. To protect battery life, start charging when capacity reaches 10–20% to avoid BMS low-voltage shutdown 【4S4P & Long-Term Reliability】 Techex 12V 320Ah lithium battery supports 4S4P configuration, reaching 51.2V 1280Ah, delivering an upgraded capacity of 65.536KWh. With over 6000+ deep cycles and a 10-year lifespan, it's perfect for DIY battery systems and ideal for home energy storage, RVs, and other off-grid applications 【Dedicated Customer Support】 Whether you have questions about Techex LiFePO4 battery or need technical assistance, we promise to respond on the same day. Our dedicated team is here to resolve any issues and ensure you have a smooth experience with our products

【Multi-brand Inverter Communication】 Techex 48V 100Ah LiFePO4 rack mount battery supports smooth communication with popular inverter brands like Victron, Pylontech, Luxpower, Sol-Ark, DEYE, GoodWe, and more. Equipped with CAN and RS485 communication ports, it includes a communication cable for easy integration—ideal for off-grid solar, home energy storage systems, and telecom backup 【Upgraded 100A BMS with Grade-A EV Cells】 Built with 16 Grade-A EV LiFePO4 cells and an upgraded smart BMS, this server rack 48V lithium battery delivers outstanding cell consistency, ultra-low self-discharge, and over 6000 deep cycles. Charging from 0°C/32°F - 55°C/131°F and discharging from -20°C/-4°F - 60°C/140°F—ensures safe and reliable operation in both hot and cold environments 【Dual Switch, Dual Terminals & Fast Plug】 The switch activates the BMS for a secure system startup, while the built-in 125A breaker controls terminal output and cuts off power during overcurrent—protecting your deep cycle 48V battery. Dual terminals ensure balanced current, lower heat, and prevent overload. Equipped with fast plug connectors for quick, tool-free installation—safe, anti-reverse, and highly conductive 【3U Rack-Mount Design, Supports Up to 15P】 Designed for scalable energy storage, this 3U 48V LFP rack-mount battery (17.40" x 18.89" x 5.23", 100 lb) features a durable metal case and solid handles for easy installation. It supports up to 15 units in parallel—ideal for home backup, workshop, or off-grid solar battery systems. Each unit comes with a parallel communication cable and a parallel power cable for fast, stable multi-unit integration 【Smart Display & Bluetooth App Monitoring】 The built-in LCD display shows real-time battery data including voltage, current, temperature, and protection status. Through the LCD PackSet menu, you can easily set the BMS communication protocol—RS485 or CAN—based on your inverter. Bluetooth connectivity lets you check battery status on your phone, and the built-in SOC indicator light shows remaining capacity at a glance 【Fast & Flexible Charging】 Recommended charging voltage: 56.8V–58.4V. Charge at 20A (0.2C) for a full 100% charge in about 5 hours, or at 50A (0.5C) for a quick 97% charge in just 2 hours, with support for up to 100A max charging current. If you're using an MPPT controller or inverter, please refer to the recommended settings in our user manual for optimal performance 【Includes Bus Bar】 Comes with a bus bar when purchasing 3 or more server rack batteries. Made of nickel-plated pure copper for reliable, long-lasting performance, compatible with DC 51.2V systems and 600A continuous current. Dual-row, 6-hole screw-mount design allows fast and easy installation and removal. Shipped separately due to package weight 【5-Year Warranty & Safety Certified】 The Techex 48V 100Ah rack mount LiFePO4 battery comes with a 5-year warranty for long-term reliability, featuring same-day technical support ready to resolve any issues.

【New Version Upgrades – WiFi Monitoring & Fire Suppression】 Upgraded with WiFi remote monitoring in addition to Bluetooth app control, allowing you to check battery status anytime and anywhere once WiFi is configured. Built-in fire suppression and anti-explosion protection activates within milliseconds when temperature exceeds 170°C (338°F)—helping suppress thermal runaway and extinguish flames before risks escalate 【Optimized Terminal Layout – Left Positive / Right Negative】 The upgraded terminal layout features left-positive and right-negative positioning, improving wiring clarity, reducing installation errors, and enhancing overall system safety—especially for rack-mounted and parallel 48V battery systems 【Multi-brand Inverter Communication】 Techex 48V 100Ah LiFePO4 rack mount battery supports smooth communication with popular inverter brands like Victron, Pylontech, Luxpower, Sol-Ark, DEYE, GoodWe, and more. Equipped with CAN and RS485 communication ports, it includes a communication cable for easy integration—ideal for off-grid solar, home energy storage systems, and telecom backup 【Upgraded 100A BMS with Grade-A EV Cells】 Built with 16 Grade-A EV LiFePO4 cells and an upgraded smart BMS, this server rack 48V lithium battery delivers outstanding cell consistency, ultra-low self-discharge, and over 6000 deep cycles. Charging from 0°C/32°F - 55°C/131°F and discharging from -20°C/-4°F - 60°C/140°F—ensures safe and reliable operation in both hot and cold environments 【Dual Switch, Dual Terminals & Fast Plug】 The switch activates the BMS for a secure system startup, while the built-in 125A breaker controls terminal output and cuts off power during overcurrent—protecting your deep cycle 48V battery. Dual terminals ensure balanced current, lower heat, and prevent overload. Equipped with fast plug connectors for quick, tool-free installation—safe, anti-reverse, and highly conductive 【3U Rack-Mount Design, Supports Up to 15P】 Designed for scalable energy storage, this 3U 48V LFP rack-mount battery (17.40" x 18.89" x 5.23", 100 lb) features a durable metal case and solid handles for easy installation. It supports up to 15 units in parallel—ideal for home backup, workshop, or off-grid solar battery systems. Each unit comes with a parallel communication cable and a parallel power cable for fast, stable multi-unit integration 【Smart Display & Bluetooth App Monitoring】 The built-in LCD display shows real-time battery data including voltage, current, temperature, and protection status. Through the LCD PackSet menu, you can easily set the BMS communication protocol—RS485 or CAN—based on your inverter. Bluetooth connectivity lets you check battery status on your phone, and the built-in SOC indicator light shows remaining capacity at a glance 【Fast & Flexible Charging】 Recommended charging voltage: 56.8V–58.4V. Charge at 20A (0.2C) for a full 100% charge in about 5 hours, or at 50A (0.5C) for a quick 97% charge in just 2 hours, with support for up to 100A max charging current. If you're using an MPPT controller or inverter, please refer to the recommended settings in our user manual for optimal performance

【Built-in Heating Function for Cold Weather】 The intelligent heating system activates automatically when the temperature drops to 0°C (32°F) or below, preventing low-temperature charging damage. Heating stops at >15°C (59°F) or during discharge, and charging resumes automatically at 3°C (37°F) or above. Heated by your charger (≥7A recommended), it ensures safe and efficient charging even in freezing weather 【EV Grade A Cells & True 320Ah Capacity】 Built with EV-grade A+ LiFePO4 cells for superior voltage consistency, ultra-low self-discharge, and stable performance. Each battery delivers over 320Ah of actual capacity, providing more usable power than rated. Compact and lightweight (13.58×7.48×9.64 in, 58.43 lbs), perfect for RVs, off-grid systems, solar setups 【200A Smart BMS & High Power Output】 Equipped with an upgraded 200A smart BMS supporting up to 300A peak discharge (10s) — ideal for running high-power inverters and motors. It automatically recovers from overload within 30 seconds, ensuring continuous operation. Reliable from -20°C/-4°F to 60°C/140°F, with charging cutoff protection below 0°C/32°F for added safety 【Certified Safety & Enhanced Protection】 Techex batteries are built with UL testing reports cells and an upgraded BMS with integrated heating pad to protect against overcharge, over-discharge, overcurrent, and short circuit. Features an excellent self-discharge rate, providing superior reliability and long-term peace of mind 【Smart Bluetooth Monitoring & Easy Setup】 Built-in Bluetooth lets you monitor voltage, SOC, temperature, and cycle count from your smartphone — no external meters required. Simple plug-and-play installation makes it user-friendly for DIY and professional systems alike 【Scalable System & Long Lifespan】 Supports 4S4P scaling for larger systems (e.g., 51.2V 1280Ah). Over 6000 deep cycles and a design life up to 10 years make it perfect for home energy storage, RVs, and other off-grid applications

【New Upgrade – 200Ah Capacity, 10.24kWh Energy & Enhanced Power Connection】 The upgraded Techex 51.2V 200Ah LiFePO4 rack mount battery delivers 10.24kWh energy—double the capacity of 100Ah models. Powered by a 200A Smart BMS for higher output and longer runtime. Upgraded to 2 AWG cables (from 4 AWG) and a 200A quick-connect plug (from 120A) for better conductivity, safer high-current performance, and more stable operation. Ideal for home solar, off-grid, and backup power systems 【Multi-brand Inverter Communication】 Techex 48V 200Ah LiFePO4 rack mount battery supports smooth communication with popular inverter brands like Victron, Pylontech, Luxpower, Sol-Ark, DEYE, GoodWe, and more. Equipped with CAN and RS485 communication ports, it includes a communication cable for easy integration—ideal for off-grid solar, home energy storage systems, and telecom backup 【Upgraded 200A BMS with Grade-A EV Cells】 Built with 16 Grade-A EV LiFePO4 cells and an upgraded smart BMS, this server rack 48V lithium battery delivers outstanding cell consistency, ultra-low self-discharge, and over 6000 deep cycles. Charging from 0°C/32°F - 55°C/131°F and discharging from -20°C/-4°F - 60°C/140°F—ensures safe and reliable operation in both hot and cold environments 【Dual Switch, Dual Terminals & Fast Plug】 The switch activates the BMS for a secure system startup, while the built-in 250A breaker controls terminal output and cuts off power during overcurrent—protecting your deep cycle 48V battery. Dual terminals ensure balanced current, lower heat, and prevent overload. Equipped with fast plug connectors for quick, tool-free installation—safe, anti-reverse, and highly conductive 【Advanced Safety Features】 The Techex 48V 200Ah LiFePO4 battery includes built-in fire suppression and anti-explosion protection that activates within milliseconds when temperature exceeds 170°C (338°F), helping prevent thermal runaway and extinguish flames before risks escalate 【3.5U Rack-Mount Design, Supports Up to 15P】 Designed for scalable energy storage, this 3.5U 48V LFP rack-mount battery (17.40" x 31.1" x 6.1", 187.2 lb) features a durable metal case and solid handles for easy installation. It supports up to 15 units in parallel—ideal for home backup, workshop, or off-grid solar battery systems. Each unit comes with a parallel communication cable and a parallel power cable for fast, stable multi-unit integration 【WiFi & Bluetooth Monitoring with Smart Display】 The Techex 51.2V 200Ah server rack battery offers multiple monitoring options for easy management. The built-in LCD display shows real-time data such as voltage, current, temperature, and protection status. Bluetooth app support allows quick checks on your smartphone, while WiFi remote monitoring lets you access battery status anytime, anywhere. The LCD PackSet menu also enables simple switching between RS485 and CAN protocols to match your inverter 【Shipping & Handling Notice】 The Techex 48V 200Ah battery ships in sets of 3+ due to its size and weight. Requires two people for safe handling and is delivered via truck freight. Please ensure your delivery location can accommodate truck deliveries. Please check your Amazon messages—our customer service team will contact you after purchase to confirm delivery details