Deep cycle 12V 300Ah Lithium Battery
Sike Power LiFePO4 12V 300Ah lithium battery is a deep cycle 300 amp hour battery, built with LiFePO4 technology, delivers exceptional performance for demanding applications. As one of the most popular 12V lithium battery, 300ah lithium battery is a lightweight, durable, and efficient power solution for RV, marine, solar, and trolling motor applications. Sike Power li ion battery 300ah is using top quality LiFePo4 cells, deliver consistent 300 amp hour capacity while a lead acid 300ah deep cycle battery only gives about 150Ah.
With a massive 3600Wh capacity (100% DoD), it powers high-energy needs, like running a 100W RV fridge for 30 hours or a 300W trolling motor for 10 hours. Its 80–100% depth of discharge maximizes usable energy, while 2000–5000 cycles ensure 8–15 years of reliable service
The lifepo4 battery 12v 300ah have a long lasting life cycles up to 10+ years. The integrated BMS built in 300ah lithium ion battery enhances safety by monitoring voltage, current, and temperature, preventing overcharge, over-discharge, and short circuits etc.

Top Quality A grade LiFePO4 Cells
Sike Power only select and use top brand brandnew A grade cell from top lithium cell manufacturers like EVE, CATL, BYD, REPT etc. So that our 12V 300ah lithium ion battery will give you a real worry-free quality and high guranteed performance. Using the cutting edge LiFePO4 technology, the 12 volt lithium battery 300ah is very impressive in durability,efficiency,reliability and safety.
Compared with lead acid 300ah deep cycle battery, the 12V 300Ah lifepo4 lithium battery have a superior deep discharge performance, DOD can be 95%-100%,it will be able to deliver dependable and stable energy during long lasting life up to 10 years. That’s the 3-5 times longer lifespan.
Durable,Safe and Smart BMS
Built to endure tough conditions,LiFePO4 battery 12V 300ah ensures ultra safe and reliable operation for solar systems, boats, and recreational vehicles in extreme environments.
- Protection against short circuits
- Automatic cells balancing
- Prevention of overcharging and over-discharging
- Temeperature control: overheat protection
- Low temperature cut-off
- Safeguards for overvoltage and overcurrent

Key Advantages of deep cycle 300ah lithium battery:
High Capacity: Provides max 3600Wh with 100% DOD
Lightweight: 70% lighter than lead-acid, improving fuel efficiency in RV and marine applications.
Long Lifespan: 3000–5000 cycles (10–15 years), outlasting lead-acid (500-800 cycles).
High Depth of Discharge (DoD): 95–100% usable capacity, maximizing energy availability.
Faster Charging: Fully charge in only 3-5 hours, 3-5 times faster than lead acid battery
Maintenance-Free: No watering or equalization, unlike flooded lead-acid.
Safety: Built-in Battery Management System (BMS) prevents overcharging, overheating, and short circuits.
Eco-Friendly: Recyclable, free of toxic heavy metals.

Why choose Sike Power as your 12V 300ah lithium battery supplier?
- 20+ years battery expertise
- One of the best 12V lithium battery manufacturers in China
- Competitive factory wholesale price
- Modern automatic production line with rigorous quality control
- Free OEM/ODM custom is acceptable without MOQ Request
- Fast delivery and fast request reaction