The runtime of a 12V fridge on a 100Ah lithium battery depends on the fridge’s power consumption. On average, a typical 12V compressor fridge consumes between 30 to 50 watts per hour. Assuming an average of 40 watts, a fully charged 100Ah lithium battery at 12V (approximately 1200Wh of usable energy) can run the fridge for about 24 to 30 hours continuously, depending on ambient temperature, insulation, and compressor efficiency.

It’s important to note that fridges do not run continuously—they cycle on and off—so in real-world conditions, the battery may last 2 to 3 days on a single charge with moderate use.

For users looking for the best value, the NP Power branded 12V 100Ah lithium battery stands out as a price-performance oriented product. It combines durability, high energy efficiency, and advanced BMS protection at a competitive price point, making it a preferred choice for powering fridges in RVs, boats, solar setups, and off-grid applications.

Whether you're on the road or off the grid, NP Power provides reliable performance and long-lasting power you can count on.

Choosing between 2 x 100Ah batteries or 1 x 200Ah battery depends on your application, space constraints, and flexibility needs.

• 2 x 100Ah Batteries: This setup offers modularity. If one battery fails, the other can still operate. It's easier to transport and can be wired in parallel for 12V or in series for 24V setups. However, it may require more wiring, space, and balancing.
• 1 x 200Ah Battery: This option is more compact and often has a built-in single BMS, reducing the complexity of installation. It usually results in cleaner wiring and is often more efficient in space-limited areas like RVs, boats, and energy storage cabinets.

If you're prioritizing simplicity, efficiency, and saving space, a single 200Ah battery is typically the better option.

For a high-quality, cost-effective solution, check out our
👉 NP Power 200Ah Lithium Battery — engineered for long-lasting power, advanced BMS protection, and exceptional performance across all energy applications.

Yes, a 100Ah lithium battery can run a 1000W inverter, but the duration depends on the system voltage and the power draw of connected devices. If you're using a 12V 100Ah lithium battery, it provides approximately 1200Wh of usable energy. A 1000W inverter running at full capacity would consume about 1000Wh per hour, meaning the battery could power it for roughly 1 to 1.2 hours under ideal conditions.

However, in real-life scenarios, efficiency losses (typically 85-90%) and inverter idle consumption reduce this time slightly. It's also important to ensure your battery can handle the surge (peak) power the inverter may draw when starting appliances.

NP Power’s 100Ah lithium batteries are designed with a robust BMS that supports high discharge rates, making them suitable for running 1000W inverters in solar, RV, or backup power systems. For longer runtime, consider adding a second battery or upgrading to a higher-capacity model depending on your energy demands.