Find answers to your most frequently asked questions here, we've collected the most common inquiries and provided detailed responses.

Most of our battery products have a ten-year warranty. This warranty applies to the failure of the battery to perform properly when the product is used correctly and in accordance with the instructions provided in the product manual. The warranty period is calculated from the date of purchase by the user.


We kindly ask users to read the product manual carefully before installing and using the product. Proper use according to the manual instructions is essential to ensure warranty eligibility.

When choosing the ideal lithium-ion solar battery for your RV or campervan, you must consider power consumption (measured in watts) and the expected runtime of the application. Here's how to make the right choice:


Evaluate power requirements: Start by determining how many watts your device or appliance will consume and how long it will last. This information will guide you in selecting a lithium-ion solar battery.


Choose the right lithium-ion solar battery model: Once you have a clear understanding of your power needs, choose the lithium-ion solar battery model that meets your requirements. We offer a range of options to suit a variety of applications.


Get expert guidance: If you find the selection process complicated or have specific questions, feel free to contact us. We can provide guidance and support. You can contact us by email or through our chat function: [email protected].


Choosing the right battery for your RV or campervan is crucial to ensuring you have reliable power during your travels. Our team is here to help you find the best product for your application.

When wiring lithium-ion solar cells, it is critical to understand the difference between series and parallel connections as it affects the voltage and capacity within the lithium-ion solar battery system.


Series connection: When batteries are connected in series, their voltages combine. For example, connecting two 12V lithium-ion solar cells in series creates a 24V (or 25.6V when fully charged) lithium-ion solar battery system. It's worth noting that capacity in amp hours remains the same. The total available energy (measured in Watt-hours (Wh)) remains constant regardless of the connection method.


Parallel: Conversely, connecting batteries in parallel means adding their capacities (in amp hours). Using the same example, two 12V lithium-ion solar cells are connected in parallel to form a 12V (or 12.8V after fully charged) lithium-ion solar battery system with a capacity of 200Ah. Just like in series, the total available energy remains at 2560Wh (Wh = Volts x Amp-hours).


It is important to emphasize that whether connected in series or parallel, the lithium-ion solar cells involved should be identical in terms of voltage, capacity and lithium-ion solar battery management system (BMS) rating. Trying to connect different batteries can cause problems that can lead to damage or worse.

When comparing lithium iron phosphate batteries to lead-acid batteries, several key advantages become apparent:


1. Deeper Depth of Discharge (DOD): LiFePO4 batteries offer significantly higher depth of discharge, utilizing approximately 85% of energy before needing to be recharged. In contrast, lead-acid batteries are limited to a 50% discharge level, beyond which their life and performance may be compromised.


2. Excellent efficiency: Lithium iron phosphate batteries have an impressive efficiency of over 95%. This means that for every 1000 watts of solar energy absorbed, over 950 watts are available for use. In comparison, lead-acid batteries have an efficiency rating of 80 to 85 percent, providing only 800 to 850 usable watts from the same 1000 watt input.


3. Enhanced energy density: LiFePO4 battery systems exhibit higher energy density values compared to lead-acid battery systems. They can store more energy within the same physical size. Additionally, LiFePO4 batteries are much lighter, weighing only one-third of lead-acid batteries. This makes them a practical choice, especially when considering factors such as mobility and installation.


4. Cost-Effectiveness: While lead-acid batteries initially appear to be more cost-effective, the extended life and overall effectiveness of LiFePO4 batteries offset the initial price difference. You don’t need to replace LiFePO4 batteries as often as lead-acid batteries, making them a cost-effective option in the long run.


5. Extended service life: LiFePO4 batteries are engineered to provide an impressive service life of over 4000 charge cycles. By comparison, lead-acid batteries typically only provide about 200 to 500 charge cycles. This means that Motawill LiFePO4 batteries have three times the cycle life of lead-acid batteries.


Compared with lead-acid batteries, lithium iron phosphate batteries have significant advantages in capacity, efficiency, longevity and overall cost-effectiveness.

Lithium batteries are an ideal replacement for traditional AGM batteries. These lithium batteries offer superior performance compared to other AGM batteries and are expected to become the primary choice for power storage in the future. By switching to lithium batteries, you can seamlessly replace lead-acid batteries, opening the door to a life of freedom and ample power.

Each of our batteries is designed with an IP65 rating, ensuring you can install it indoors and outdoors with confidence. This strong level of protection means you don't have to worry about your battery being exposed to the elements.


However, care must be taken when charging or discharging the battery. Prevent the terminal studs or terminals from coming into contact with water, as this precaution helps protect the battery from potential damage.

12V lithium batteries prioritize safety, making them an excellent choice for users and the environment. Here's why they are considered safe:

NON-TOXIC COMPONENTS: The 12V lithium battery is made of non-toxic materials and does not emit any dangerous or harmful fumes. This ensures user safety and has a positive impact on the environment.

Built-in Battery Management System (BMS): All our lithium-ion solar cells are equipped with an advanced Battery Management System (BMS). BMS plays a key role in ensuring safe use by guarding against various potential risks. It provides protection against overcharge, over-discharge, over-current conditions, and short circuits. In addition, it maintains excellent self-discharge rate. A built-in high-temperature cutoff prevents charging when temperatures exceed 158°F (70°C), further increasing safety.

Certification and Quality Assurance: Our lithium-ion solar cells have obtained the necessary certifications verifying their safety and quality standards. Before delivery, each battery undergoes a thorough quality inspection to ensure it is a reliable and trustworthy product.

The 12V lithium battery is designed with safety as the top priority, giving users peace of mind while being environmentally responsible.

The 12V 100Ah lithium battery has an impressive lifespan of up to 4000 full charge and discharge cycles. After reaching this number of cycles, the battery's efficiency may decrease slightly but will still provide approximately 90% of its original performance.

12V 100Ah lithium batteries are designed with specific charging and discharging operating temperature ranges:

Discharge: The battery can operate safely in a temperature range of 5°F to 158°F (-15°C to 70°C).

Charging: Recommended charging operating temperature range is 41°F to 131°F (5°C to 55°C).

For optimal performance and battery health, it is recommended to use this battery at a temperature of approximately 73.4 ± 9°F (23 ± 5°C).

Our 12v 100Ah lithium battery is waterproof and has an IP rating of IP65.

This IP rating indicates that the product will not get water when left outside on rainy days. When it rains normally, water will not affect the product;

However, the battery terminals should not be exposed to water during use, otherwise it may cause the battery to short circuit.

1. Initial activation:

Before deploying the 12V 100Ah LiFePO4 battery for the first time, you need to activate it. This can be accomplished by subjecting the battery to a charge or discharge current greater than 1 amp.
2. Terminal voltage verification:

After activation, measure the battery's terminal voltage to confirm that it meets the required specifications.
3. Extend the storage period:

If you plan to store the 12V 100Ah lithium battery for a long period of time, it is recommended to disconnect it from the system. This precaution is taken to preserve the condition of the battery.
4. Automatic listing mode:

After 24 hours the battery will automatically enter what is called "shelf mode". In this mode, the battery exhibits a lower self-discharge rate and can retain its charge for a longer period of time.

To ensure optimal performance and life from your 12V 100Ah lithium battery, we recommend using a charger that meets the following specifications:


1. Charging voltage: A charger that provides a charging voltage in the range of 14.2V to 14.6V must be used.


2. Charging current: The recommended charging current can be selected according to your specific requirements:

20A (0.2C): This charge rate will charge the battery to 100% capacity in approximately 5 hours.
50A (0.5C): Selecting this charge rate will bring the battery to approximately 97% capacity in approximately 2 hours.

When connecting the charger to the battery, make sure it is connected before plugging it into the grid to prevent sparks.

We strongly recommend not to combine 12V 100Ah lithium batteries with lead-acid battery packs. This configuration may cause battery damage and should be avoided.


When wiring or connecting batteries, they must match the same type of battery (lithium in this case), have the same Ampere Hour (Ah) capacity, the same Voltage (V), and be from the same brand. Mixing different battery types, especially lithium and lead-acid batteries, can cause operating problems and potentially harm the battery.

1. Series and Parallel Connections: Our 12V battery design supports series and parallel connections, allowing for flexible configurations.


2. Maximum Configuration: With this in mind, you can expand the battery system to accommodate up to 16 cells. This can be achieved by connecting them 4 in series and 4 in parallel.

It is not recommended to connect batteries of different capacities, such as 12V 100Ah lithium battery and 12V 50Ah lithium battery, for two main reasons:


1. Current difference: When batteries of different capacities are connected in parallel, the battery with larger capacity (100Ah) will contribute twice as much current as the battery with smaller capacity (50Ah) during charging and discharging. This mismatch can lead to performance imbalances and potential problems.


2. Impedance differences: Batteries often have different internal impedances. When batteries with different impedances are connected in parallel, it can cause long-term stress on the battery management system (BMS) and can cause damage over time.


To ensure that your battery system operates safely and efficiently, it is recommended to use batteries of the same voltage and capacity when connected in parallel.

It is recommended to store 12v 100Ah lithium batteries at 50% state of charge (SOC). If you store batteries for long periods of time, cycle them at least every 6 months. Recommended storage environment: 10℃~35℃ (50℉~95℉), 45%RH~75%RH

Can't. This model only works with 12V battery systems.

Can't. The Motawill 3000W Pure Sine Wave Inverter can only convert DC power to AC power.

1. Determine Power Requirements: Inverters are rated by their wattage capacity, which means how many watts they can handle at once. To calculate your power needs, add up the wattage of all the devices you plan to run. For example, if you have a 500-watt refrigerator and an 800-watt air conditioner, the total load is 1300 watts. In this case, you need an inverter with a capacity of more than 1300W. Motawill's 2000W and 3000W inverters are suitable for such power needs.


2. Battery voltage compatibility: The DC voltage rating of the inverter should match the voltage of the battery pack. If you have a 12V battery pack, make sure your inverter is compatible with 12V DC input.


3. Installation space: Consider where you plan to install the inverter. Make sure it fits into the designated space and has enough room for proper ventilation to prevent any fire hazard.

Modified sine wave inverters are older technology and are generally less expensive. They can be used on many standard devices, but can cause trouble in delicate electronic or audio equipment. Some devices may work but run hotter than normal.
Pure sine wave inverters are a larger investment but are more versatile.

1. The output voltage waveform is a pure sine wave with extremely low harmonic distortion. It is the same clean electricity as commercial power.

2. Inductive loads such as microwave ovens and motors run faster, quieter, and cooler.

3. Reduces acoustic and electrical noise from fans, fluorescent lights, audio amplifiers, televisions, game consoles, fax machines and answering machines.

4. Prevent computer crashes, strange printouts, and monitor glitches and noises.

Yes, as long as the lithium battery is rated for 12V applications.

Three data points must be confirmed. (1) Rated power of operating load (W). (2) Estimated operating time of the load (in hours). (3) Nominal value

Avoid switching on the inverter when the load is switched on. This can trigger an overload, as some electronic devices have an initial high power surge to start up.

The rated power of the load (W) should be less than the continuous power supported by the inverter (3000W). Please note that inverter efficiency = inverter output power/inverter input power.

Expert advice

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