Featured Products

Ultra-Compact Steel Powerhouse (51.2V 105Ah): Maximum power in minimum space. Delivers 5.376kWh of energy in a surprisingly compact SPCC steel casing (13.8×12.4×9.2 in). Perfect for tight battery trays where standard batteries won't fit, without sacrificing capacity.Industrial Relay-Based BMS (200A): Built for heavy duty. Uses a robust Mechanical Relay (Contactor) instead of standard MOSFETs. This ensures superior resistance to high current impact, delivering 200A continuous and 650A surge (10s) for powerful acceleration and hill climbing.Compliance certified & Rugged Safety: Certified to the highest safety standards (CE, FCC, UN38.3). The heavy-duty metal housing is vibration-resistant, provides excellent heat dissipation, and features IP65 protection for stable performance in tough and uneven conditions.Advanced Dual-Balancing Technology: Maximize battery life. Features a unique dual-mode balancing system (Charge Balancing + Static Balancing). This keeps internal cells perfectly aligned for optimal efficiency and longevity.Smart Control (Touchscreen + Bluetooth): Total command at your fingertips. Includes a dashboard LCD Touchscreen and Bluetooth App. Monitor SOC, Voltage, and Temp in real-time, or trigger "Emergency Shutdown" remotely for ultimate safety.All-Weather Charging Bundle: Includes a matched 58.4V 22A LiFePO4 charger. The system features intelligent Low-Temp Cut-Off (stops charging <32°F/0°C) and High-Temp protection, ensuring safe operation from -4°F to 140°F.Universal Golf Cart Fit: Designed for seamless integration. Compatible with 48V Club Car, EZGO, Yamaha, and other major brands. The compact footprint makes installation easier in modified or space-limited carts.Exceptional KeepKnow Service: Experience premium support. Backed by a 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.

The 72V High-Voltage Beast (7.7kWh): Unleash the full potential of your cart. Delivers a massive 7.728kWh of energy (73.6V 105Ah nominal). Designed for high-performance 72V modified carts, providing explosive acceleration and extended range that standard batteries can't match.Industrial Relay-Based BMS (200A): Engineered for high-voltage safety. Features a robust Mechanical Relay (Contactor) system instead of MOSFETs to handle the intense arcing and surges of 72V systems. Supports 200A continuous (14.7kW) and 650A peak (10s) for unmatched hill-climbing power.Advanced Dual-Balancing Technology: Critical for high-voltage stability. Utilizes a superior dual-mode balancing system (Charge Balancing + Static Balancing). This ensures all cell strings remain perfectly aligned, preventing voltage drift and maximizing the lifespan of this large battery pack.Rugged Steel Casing & Safety Valves: Built for tough environments. Housed in a heavy-duty SPCC steel case (21.7×12.4×9.2 in) with IP65 protection. Equipped with an explosion-proof pressure release valve and M8 terminals, ensuring safety under extreme conditions.Dual Smart Interface (Touchscreen + App): Total control. Includes a dashboard LCD Touchscreen and Bluetooth 5.0. Monitor real-time Voltage, Current, and Cell Status, or trigger "Emergency Shutdown" remotely via the App for ultimate security.High-Voltage Charging Bundle: Includes a specialized 83.95V 18A LiFePO4 charger. The system features intelligent Low-Temp Cut-Off (stops charging <32°F/0°C) protection, ensuring safe operation in all seasons (-4°F to 140°F).Universal 72V Compatibility: Perfect for upgrades. Fits seamlessly into ICON, modified Club Car, EZGO, and other 72V systems. Replaces 6x12V lead-acid setups directly, saving hundreds of pounds while delivering 50% more power.Exceptional KeepKnow Service: Invest in performance with confidence. Backed by a 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.

Essential 48V Golf Cart Power (51.2V 100Ah): The perfect balance of power and range. Providing 5.12kWh of reliable energy, this 51.2V 100Ah battery rejuvenates your cart with consistent speed and extended runtime, replacing extended heavy lead-acid setups effortlessly.200A High-Output Performance: Don't settle for weak acceleration. Equipped with a premium 200A BMS, it delivers up to 10.24kW of continuous power and a massive 650A surge (10s), ensuring you have the torque to conquer steep hills and heavy loads.Dual Smart Interface (Touchscreen + App): Complete control in your hands. Comes with a dashboard-mountable LCD Touchscreen and Bluetooth 5.0. Monitor real-time SOC, voltage, and health, or use the App to remotely manage discharge for added security.Lightweight Drop-in Design: Save weight, gain speed. Measuring 20.5×9.4×8.6 inches and weighing 92.6 lbs (42kg), it is roughly 1/3 the weight of a comparable lead-acid bank, significantly reducing vehicle drag and tire wear.Charger Included for Easy Setup: Ready to go out of the box. Includes a dedicated 18A LiFePO4 charger that communicates perfectly with the battery. Supports safe charging from 14°F 至 149°F with automatic low-temp cut-off protection.Rugged IP65 & Shockproof Casing: Built for the course. The durable, flame-retardant ABS plastic housing is rated IP65 waterproof and military-grade shockproof, designed to withstand the vibrations and impacts of daily driving.Long-Lasting LiFePO4 Durability: Drive for a decade. Features EV Grade-A cells that deliver 4,000+ cycles at 100% DOD (6,000+ at 80% DOD), offering 10x the lifespan of lead-acid batteries with zero maintenance required.Exceptional KeepKnow Service: Invest with confidence. We provide a 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.

Ultimate 36V Golf Cart Upgrade (38.4V 105Ah): Revitalize your 36V cart. This 38.4V 105Ah lithium battery packs 4032Wh of energy, offering significantly longer range and runtime than traditional lead-acid setups. Perfect for Club Car, EZGO, and Yamaha 36V models.Hill-Crushing Torque (200A Continuous): Experience zero voltage sag on hills. Equipped with a robust 200A BMS, it delivers up to 7.6kW of continuous power and a massive 650A surge (10s), ensuring rapid acceleration and powerful climbing ability.Dual Smart Control (Touchscreen + Bluetooth): Stay informed while you drive. Features a dashboard-ready LCD Touchscreen and built-in Bluetooth. Check your remaining range, voltage, and battery health instantly via the screen or the KeepKnow App.Lightweight & Agile Performance: Speed up your game. Weighing just 71.9 lbs (32.6kg), it slashes ~300 lbs off your cart compared to heavy lead-acid batteries, reducing tire wear and boosting top speed and agility.Fast Charging Bundle (Charger Included): Includes a specialized 25A LiFePO4 charger for plug-and-play convenience. Supports fast charging to get you back on the course 10x faster than old AGM batteries.Rugged IP65 ABS Casing: Engineered for the outdoors. The military-grade, flame-retardant ABS case is IP65 waterproof and shockproof, specifically designed to withstand the bumps and vibrations of golf course terrain.All-Weather Reliability: Drive in any season. Operates safely from -4°F to 140°F with intelligent low/high-temperature cut-offs. The smart BMS actively prevents over-discharge, over-current, and short circuits.Exceptional KeepKnow Service: Drive with peace of mind. Backed by a 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.

Heavy-Duty 36V Steel Powerhouse (38.4V 105Ah): Built like a tank. Features a rugged SPCC Steel casing (17.0×13.1×9.0 in) that offers superior impact protection and heat dissipation compared to plastic batteries. Delivers 4032Wh of energy to revitalize your golf cart.Industrial-Grade Relay BMS (High Surge Resistance): Engineered for maximum durability. Unlike standard MOSFET systems, our advanced Relay-based BMS withstands massive current surges and vibrations, ensuring reliable 200A continuous output and 650A peak (10s) without overheating.Dual Smart Control (Touchscreen + Bluetooth): Monitor with ease. Includes a dashboard-mountable LCD Touchscreen and Bluetooth 5.0. Check real-time Voltage, Current, and SOC, or use the "Emergency Shutdown" feature via the App for added safety.Universal 36V Compatibility: Seamless drop-in upgrade. Designed to fit perfectly in Club Car, EZGO, and Yamaha 36V carts. The metal case dimensions and terminal layout are optimized for easy installation in standard battery trays.Fast Charging Bundle (25A Charger Included): Includes a matched 43.8V 25A LiFePO4 charger for safe, rapid recharging. The system features intelligent low-temperature cut-off protection (stops charging below 32°F/0°C) to prolong battery life.Automotive-Grade LiFePO4 Cells: Powered by 16 premium EV A-grade cells. Delivers 4,000+ cycles at 100% DOD and 6,000+ at 80% DOD. Provides a 12+ year design life, lasting 10x longer than lead-acid equivalents.All-Weather IP65 Protection: Ready for the elements. The powder-coated steel housing is rated IP65 waterproof and dustproof. Operates reliably from -4°F to 140°F, handling rain, mud, and rough terrain with confidence.Exceptional KeepKnow Service: Drive with peace of mind. Backed by a 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.

High-Density 24V 100Ah Power: Double the power in the same space. Delivers 2560Wh of energy in a compact Group 31 size (13.6×7.5×9.6 in). Weighing just 40.8 lbs, it offers high energy density perfect for space-constrained RVs and Trolling Motors.10× Faster Charging (1C Support): Minimize downtime. Supports a maximum charge current of 100A (1C), charging 10× faster than lead-acid batteries. Pair with a 29.2V LiFePO4 charger or ≥800W solar setup for rapid energy replenishment.Scalable to 20kWh (48V Ready): Build a massive off-grid system. Supports expansion up to 4 Parallel and 2 Series (4P2S) to create a powerful 51.2V 400Ah battery bank with a total capacity of 20.48kWh.Smart 100A BMS Protection: Features an intelligent 100A BMS that safeguards against overcharging, short circuits, and deep discharge (auto-disconnect <20V). Includes a 30-second auto-recovery function for effortless operation.Rugged IP65 & All-Weather Design: Built for the elements. The flame-retardant ABS casing is IP65 waterproof and shock-resistant. Operates reliably from -4°F to 140°F, ideal for marine and outdoor applications.Long-Life LiFePO4 Technology: Premium EV Grade-A cells deliver 4,000+ cycles at 100% DOD and 6,000+ cycles at 80% DOD. Designed for 12+ years of reliable use—10× longer than AGM batteries.Versatile Charging & Compliance: Flexible charging via 29.2V Chargers (50A recommended), Solar Controllers, or Alternators. Fully compliant with FCC, CE, RoHS, and UN38.3 safety standards.Exceptional KeepKnow Service: Backed by a 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service. (Note: Not for use as a vehicle starter battery).

High-Density Powerhouse (12.8V 320Ah): Massive energy in a compact footprint. Delivers 4096Wh of capacity while measuring just 13.6×7.5×9.6 inches. At 57.5 lbs, it provides 3x the energy of traditional lead-acid batteries at 1/3 the weight.Robust 200A BMS & High Discharge: Built for heavy loads. Features a powerful 200A BMS that supports 200A continuous discharge and a massive 650A surge (3s), making it ideal for running air conditioners, microwaves, and large inverters.Smart Bluetooth 5.0 Monitoring: Take control with the KeepKnow App. Monitor voltage, current, remaining capacity, and battery health in real-time directly from your smartphone—eliminating the need for external battery monitors.Rugged IP65 & All-Weather Design: Engineered for harsh environments. Encased in a flame-retardant, military-grade ABS shell with IP65 water/dust resistance. Operates reliably from -4°F to 140°F with built-in low-temp charging protection.Massive System Scalability: Flexible expansion for off-grid living. Supports up to 4S4P configuration (4 Series, 4 Parallel) to build a colossal 48V (51.2V) 1280Ah system with 65.5kWh of energy storage.EV Grade-A Longevity: Powered by premium LiFePO4 cells delivering 4,000+ cycles at 100% DOD (6,000+ at 80% DOD). Designed for a 10+ year service life, offering true maintenance-free performance.Versatile Charging Compatibility: Recharge efficiently via LiFePO4 Chargers (14.6V 20A+ recommended), Solar Panels (MPPT), or Alternators. Fully compliant with FCC, CE, RoHS, and UN38.3 standards.Exceptional KeepKnow Service: Experience worry-free power with our 5-Year Warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.

Perfect Group 31 Drop-in Replacement: Designed to the standard Group 31 size (12.8×6.8×8.5 in), it fits perfectly into existing battery boxes. Weighing only 23.7 lbs, it is 1/3 the weight of a lead-acid battery, making installation and handling effortless.Built-in Bluetooth 5.0 Monitoring: Stop guessing your battery levels. Connect to the KeepKnow App via Bluetooth 5.0 to monitor real-time voltage, capacity, and battery health instantly from your phone—no extra shunt required.Rugged IP65 & Military-Grade Durability: Engineered for the outdoors. Features an IP65 waterproof rating, military-grade shock resistance, and a flame-retardant ABS case, making it ideal for Trolling Motors, Boats, and bumpy RV travel.1280Wh of True Usable Energy: Delivers 100% usable capacity (unlike lead-acid's 50%) with a steady 1280W continuous output. Supports 4000+ cycles at 100% DOD, ensuring over 10 years of reliable service.Smart BMS with Low-Temp Cutoff: The built-in 100A BMS provides comprehensive safety against overcharging and short circuits. Crucially, it includes a low-temperature cut-off sensor to prevent charging damage in freezing weather.Scalable for 48V Systems: Need more power? Easily expand your system up to 4S4P (4 series, 4 parallel) to create a powerful 48V 400Ah (20.48kWh) energy bank for home backup or large solar setups.Versatile Charging Options: Recharge efficiently using a LiFePO4 charger (14.6V 20A recommended), solar panels (MPPT controller), or your vehicle's alternator (DC-DC charger recommended).Important Usage Note & Warranty: Designed strictly as a Deep Cycle Battery for energy storage. DO NOT use as a starting battery (CCA) for cars or boats. Backed by KeepKnow’s 5-Year Warranty and lifetime support.

5.12kWh Scalable Power: Each 51.2V 100Ah unit delivers 5.12kWh capacity. Supports connecting up to 15 units in parallel (76.8kWh total) with a robust 100A continuous and 130A peak discharge current.Dual Safety System: Equipped with a built-in automatic fire suppression module and a Smart 100A BMS. This dual-layer design actively prevents thermal runaway, short circuits, and overcharging for maximum security.Universal Compatibility: Features CAN & RS485 ports for seamless communication with major inverters (Victron, Sol-Ark, DEYE, Growatt, etc.). Includes essential cables for immediate plug-and-play integration.Long-Life LiFePO4 Tech: Premium Grade-A cells deliver 6,000+ cycles (80% DOD) and a 12+ year design life. Offers 10x the durability of lead-acid batteries with zero maintenance required.Smart Monitoring: Monitor battery health in real-time via the built-in LCD screen or access detailed performance data remotely through the Bluetooth/WiFi Smartphone App.Robust 3U Rack Design: Compact metal housing (18.9×17.4×5.2 in) fits standard server racks. Features high-current terminals and thick #4AWG cables to prevent overheating in high-load setups.All-Weather & Flexible Charging: Reliable operation from -4°F to 140°F. Supports charging via LiFePO4 chargers, Solar panels (≥1500W), or Generators. Certified by FCC, CE, RoHS, and UN38.3.Exceptional KeepKnow Service: Enjoy peace of mind with a 5-year warranty, lifetime technical support, fast delivery, and responsive 24/7 customer service.