FAQ

About Battery

Connecting in series increases the voltage, while connecting in parallel increases the capacity. You can decide the connection method based on the voltage and current requirements of your device. Delong Energy’s lithium batteries can be connected in series, in parallel, or in a combination of both series and parallel.

Both lead acid and lithium batteries are viable options, depending on your needs. You need to consider the specific requirements of the application, initial costs, maintenance capabilities, and environmental impact. Lead acid batteries are more affordable but are larger and heavier; lithium batteries have a longer cycle life than lead acid batteries and are more environmentally friendly.

Electricity (Wh) = Voltage (V) × Capacity (Ah). A 12V 100AH lithium battery can store 1.2 kilowatt-hours (1200Wh). Four such lithium batteries can store 4.8 kilowatt-hours, and so on. Theoretically, a 12V 100AH lithium battery can provide a power of 1200 watts for continuous operation for one hour.

Delong Energy’s lithium batteries have undergone various rigorous tests: drop, puncture, high temperature, low temperature, short circuit, compression, impact, overcharge, etc., to ensure safety in use. Additionally, the batteries are equipped with a smart Battery Management System (BMS) that automatically cuts off the power when parameters exceed safe limits.

Delong does not recommend doing so. Lithium batteries from different brands cannot guarantee consistency, and mixing them can easily shorten the lifespan of the batteries and may even pose safety risks.

You can read data directly on the LED screen of the lithium battery, such as battery capacity, State of Charge (SOC), voltage, and current values. You can also remotely view this information on the Delong APP.

About Delong

Delong Energy is a battery factory with 11 years of experience, which integrates research, development, production, and sales.

Delong Energy has a strong R&D team and a set of international certifications, including MSDS, UN38.3, FCC, IEC62133, CE, UL, KC, BIS, CB, ROHS, and ISO9001:2015 certified.

We have engineers who can help you design and R&D any related products.

Yes, we have a professional engineering team to provide an excellent solution for you.

Yes, we can supply samples. The lead time for samples is 3-5 days. The buyer pays for the sample cost and shipping cost.

We adopt T/T, Paypal, Alibaba payment way, Credit Card, Visa, Echecking, Master Card, Trade Assurance, etc.

Yes, the battery warranty is 10 years. If there are any quality problems on our side in this period, we can send a new one as a replacement.

Delong – Professional Lithium Battery Manufacturer in China

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