Ionic Lithium Deep Cycle Battery 12V300-EP4S
The Best Value 12V 300Ah Lithium Battery on the Market
The Ionic 12V 300ah Lithium Deep Cycle Battery is the most competitively priced lithium deep cycle battery on the market, especially when you factor in its 4x longer lifespan.
(Compared to lead acid batteries, which typically need to be replaced every few years).
It has an 11-year battery warranty to give you peace of mind with your purchase.
The lithium iron phosphate technology ensures efficient energy storage, making it ideal for various applications such as RVs, motorhomes, solar panels, and solar power systems.
These Heated Batteries Have Many Powerful Advantages:
- Lasts 10+ Years (Often Longer)
- 11-year Battery Warranty
- 4x The Service Life of Lead Acid Batteries
- View Battery Status From Your Phone via Bluetooth
- 70% Lighter & More Compact (than traditional lead acid batteries and gel batteries)
- 5x Faster Charging
- Zero Maintenance
- 2x The Power Supply
- Small Package with High Performance
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Built-in Heater for Reliability in Cold Weather
12V 300Ah Battery + Bluetooth, Heater & BMS
World Class Safety Features
This battery has 12 volts and a 300Ah capacity, perfect for powering your deep cycle systems, whether RV, off-grid systems, solar power storage, or other applications. Ionic Deep Cycle has an internal microprocessor-controlled battery management system (BMS) that protects your battery. This internal battery management system monitors the key operational parameters during charging and discharging, such as voltages, currents, and internal temperatures.
The 12v 300ah Battery Built for Longer Lasting, Reliable Power
The Ionic Deep Cycle Battery has a cycle life of 3,000 cycles or about 10 calendar years. Our lithium batteries have a usable capacity of 99% compared to 50-60% for a traditional lead acid battery]. That’s roughly 40-50% extra capacity.
LithiumHub Deep Cycle batteries function in the widest range of temperatures with a discharge temperature range (Functional) of –20°C to 60°C (–4°F to 140°F) and a charge temperature range of 0°C to 45°C (32°F to 113°F). Automatically detects if batteries are too cold to take a charge. Recharging the battery under optimal conditions is crucial to maintain its cycle life and performance.
Ionic Deep Cycle Lithium Batteries: Best Weight-to-Power Ratio on the Market
The Ionic 12V 300Ah Battery gives you more power for its size and weight than any other deep-cycle battery out there. It’s super-compact and lightweight but delivers a ton of power.
Why It’s Better (Short Version):
- Stores Power Efficiently – Holds more power and takes up less space.
- Incredibly Low Self-Discharge – Loses 1-3% of charge per month, compared to 30% for lead-acid batteries.
- Flexible Installation – You can mount it in any direction (unlike traditional lead-acid batteries).
- Works with Solar & Most Lead-Acid Chargers – Avoid chargers with “Desulfate” mode and make sure the voltage is 14.4-14.6V for full charging.
- High Charging Power – Can handle up to 300A charge current.
- Strong Discharge Power – 200A continuous, 500A peak (for 3 seconds).
- High-Wattage Use – It supports high-wattage use, with a 2500W continuous, 6000W peak (for 3 seconds).
Here’s the Details
At 20.5” (L) x 10.6” (W) x 8.7” (H) and only 83.1 lbs., the Ionic Deep Cycle 12V300-EP has the best size-to-power ratio over any deep cycle battery available today. That’s stored power at its best.
Connectors: 3/8th UNC Threads allow you to install the battery in any direction, unlike fixed lead-acid batteries. Ionic Deep Cycle Batteries’ monthly self-discharge rate is 1-3%. Compare that to lead-acid batteries which are about 30%. The max charge voltage is 14.6V, and the discharge cut-off voltage is 10.5V.
The max charge current is 300A and the max discharge current is 200A / 350A(3s). The peak discharge current is 500A (3s). 2500W continuous, 6000W peak (3s). You can charge these amazing batteries with solar chargers. You can charge them with most traditional lead-acid chargers that do not have “Desulfate” mode, provided the current levels do not exceed lithium battery charge specification. You can charge the battery with a traditional lead-acid charger that reaches 14.4-14.6 volts. Chargers at and below 13.6 volts will only charge the battery to 50% capacity or less.
Has Bluetooth connection |
Can be charged in series |
Can be charged in parallel |
Free Shipping |
30 Day Return Policy |
11 Year Battery Warranty |
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