12V 400Ah w/ Bluetooth 5.0

12V 400Ah Lithium Battery w/ Bluetooth 5.0

Serious Power for Demanding Setups

Big energy storage for serious systems. This 12.8V 400Ah LiFePO₄ battery delivers a full 5120Wh of capacity in one rugged, high-output package — while still coming in at just shy of 80 lbs.

It’s an ideal foundation for RVs, vans, off-grid living, marine use, solar & wind systems, and large backup power builds — giving you long runtime, clean voltage, and dependable performance without the maintenance and voltage sag of lead-acid.

Why You’ll Love This

• Massive Usable Storage: 400Ah / 5120Wh for long runtimes and high-demand systems.
• High Output Power: 200A continuous discharge (approx. 2560W) for inverter and load-heavy use.
• Bluetooth Ready: Monitor SoC %, volts, amps, temps, alarms, and overall battery status in the app.
• Built to Scale: Series & parallel capable — build from 12V all the way up to 48V/51.2V systems.
• Long Cycle Life: Premium A+ cells rated for 5000+ cycles with a 10+ year service life.

Best Match for Inverters

This battery is built for real inverter loads. With a 200A continuous output (about 2560W at 12.8V), it’s a natural fit for inverter systems up to 2500W — including fridges, appliances, tools, and multi-day runtime setups.

It also pairs perfectly with MPPT and PWM solar charge controllers, making it a strong core battery for larger 12V solar systems — or as a building block for scalable multi-battery banks.

Cold Weather Notes

This model includes built-in low-temperature charging protections via the internal BMS to prevent unsafe charging in freezing conditions.

If your system needs to charge reliably in freezing temperatures, our 12V 200Ah Self-Heating Bluetooth Battery is an excellent alternative. By running two in parallel, you get the same 400Ah total capacity, plus automatic cell heating, and an incredible 400A output capability — making it a strong option for cold-climate and high-current systems.

Bluetooth App Monitoring

Built-in Bluetooth 5.0 gives you real-time visibility into your battery using a free mobile app for iOS and Android. At a glance, you can see exactly how your system is behaving — no estimates, no guesswork.

The app shows your state of charge, live voltage and current, internal temperature, and cell balancing / protection status, plus any active alarms. It’s ideal for system setup, troubleshooting, and everyday confidence in your power system.

Features

• 200A max continuous discharge (approx. 2560W)
• 5120Wh storage capacity
• Bluetooth 5.0 connectivity + mobile app
• Automatic cell balancing for maximum energy density and lifespan
• High/low temperature protections for charging & discharging
• Over-discharge, over-charge, over-current & short-circuit protection
• Over-temperature protection (~65°C)
• A+ grade premium cells
• 5000+ cycles
• 5-Year Limited Warranty
• 10+ Year expected service life
• Series connectable: Max 4S (48V / 51.2V)
• Parallel connectable: Max 4P

Perfect For

• Fishing / marine use
• Golf carts
• RV / camper
• Vans / busses
• Overland setups
• Diesel heaters
• CPAP (with or without an inverter)
• Off-grid living
• Solar & wind systems
• Emergency power backups
• Disaster preparedness
• Large-scale power systems

Specifications