300Ah 12V LiFePO4 Off-Grid Battery Kit 3.8kWh Deep Cycle for RVs and Off-Grid Use

Product Overview

The ALPHA 1 LITE is a 12V 300Ah lithium battery built with premium LiFePO4 cells from RICH SOLAR. Designed for longevity and reliable energy storage, it delivers over 4,000 cycles and more than 10 years of lifespan. Compact and lightweight in a Group 24 size, this battery is ideal for RVs, vans, and off-grid setups that require dependable, portable power.

With 300Ah capacity and low maintenance deep-cycle performance, the ALPHA 1 LITE offers predictable energy output and stable voltage for a wide range of applications. Its design prioritizes durability, safety, and efficiency for long-term use in demanding scenarios.

Why This Product Makes Sense

Energy storage is only valuable if it is reliable and consistent. Many generic batteries underperform or degrade quickly, leaving users uncertain during critical periods. The ALPHA 1 LITE addresses this with premium LiFePO4 cells known for long cycle life, thermal stability, and low self-discharge. This allows for consistent performance over years without constant maintenance.

The Group 24 form factor combines compact size with significant energy capacity, making the battery easy to integrate into RVs, vans, or small off-grid setups. It balances physical space requirements with usable energy, so buyers can confidently plan system capacity without guessing.

With a continuous charge and discharge current rating of 300A, the ALPHA 1 LITE supports higher loads without stress on the battery. Individual cell fusing and a sophisticated BMS add layers of safety, ensuring that overcharge, over-discharge, short circuits, or excessive heat do not compromise performance. This provides peace of mind in real-world use, where load and environmental conditions can vary.

Temperature resilience is another key trait. With safe operating ranges from -4℉ to 140℉ for discharge and 32℉ to 131℉ for charging, the battery functions predictably across a wide range of climates. Storage conditions are also clearly defined, supporting long-term planning without uncertainty.

Compact, lightweight, and easy to handle, the ALPHA 1 LITE also features a removable carry handle. It is designed to be user-friendly while maintaining high performance. Choosing this battery allows for a robust, reliable energy foundation, reducing the friction and stress often associated with substandard batteries.

Overall, the ALPHA 1 LITE combines predictable energy output, long lifespan, and safety features that make it a practical choice for buyers who value durability, clarity, and confidence in their energy storage systems.

What To Expect From It

During daily use, the ALPHA 1 LITE delivers stable 12.8V output with 300Ah capacity, totaling 1280Wh of energy storage per battery. Its low self-discharge rate of less than 5% per month means energy remains available even after periods of inactivity.

The integrated BMS ensures safe operation by monitoring each cell individually. If any cell experiences a failure, an internal fuse isolates it while allowing the battery to continue functioning. Overcharge, over-discharge, overcurrent, and short circuit protections are included, along with high and low temperature disconnects, ensuring the system behaves predictably under varying conditions.

Owners can expect simple handling and connection, with lightweight batteries that include removable carry handles. The battery supports high amp loads safely, and its stable output voltage keeps connected devices operating reliably. Maintenance requirements are minimal, with the LiFePO4 chemistry inherently durable and long-lasting.

When used as part of a battery bank, such as a 300Ah 12V configuration with three batteries, the system provides coherent, modular energy storage. Included 2 AWG cables allow straightforward connection, ensuring the bank functions reliably from the first setup.

Technical Specifications

• Nominal Voltage: 12.8V
• Nominal Capacity: 300Ah
• Minimum Capacity: 99.5Ah
• Cycle Life: >4000 cycles
• Operating Voltage: 12.8V
• Energy: 1280Wh
• Charge Voltage: 14.4V
• Continuous Charge Current: 300A
• Continuous Discharge Current: 300A
• Self Discharge: <5%/month
• Charge Temperature: 32℉ to 131℉ (0℃ to 55℃)
• Discharge Temperature: -4℉ to 140℉ (-20℃ to 60℃)
• Storage Temperature: 14℉ to 113℉ / -10℃ to 45℃, 90% RH max
• Battery Dimensions (LxWxH): 10.2 x 6.6 x 8.3 in
• Weight: 24.3 lb

What’s Included

• 3 x 12V 300Ah LiFePO4 batteries
• 4 x 1 ft 2 AWG battery cables

BMS Operation

• Every cell individually fused to prevent damage to other cells
• Overcharge protection: detection voltage 3.75V ±0.03V, recovery 3.55V (3.40–3.60V)
• Over-discharge protection: detection voltage 2.20V ±0.08V, recovery 2.70V ±0.10V
• Short circuit protection
• High & low temperature disconnects
• Convenient removable carry handle
• Lightweight design

Warranty

The ALPHA 1 LITE comes with a 5-year warranty, covering material and workmanship, supporting confidence in long-term energy storage performance.