Question 1

Why is my portable power station charging slowly?

Accepted Answer

Slow charging may be caused by an incompatible or low-power charger, an unstable power source, cable issues, low or high ambient temperature, or the battery's charging protection s…

Question 2

Why does my portable power station shut down during use?

Accepted Answer

A portable power station may shut down during use if the battery level is too low, the connected load exceeds the rated output limit, or the BMS or inverter protection function is …

Question 3

Why is the DC output not working?

Accepted Answer

If the DC output is not working, check whether the DC output function is enabled and the battery has sufficient charge. Inspect the output cable, connector, and connected device. M…

Question 4

Why is there no AC output from my portable power station?

Accepted Answer

If your portable power station has no AC output, check whether the unit is powered on and the AC output function is enabled. The battery may be too low, the connected load may exce…

Question 5

Why won't my portable power station turn on?

Accepted Answer

If your portable power station cannot be turned on, the battery may have insufficient charge, the power button may not be operated correctly, or the Battery Management System (BMS)…

Question 6

Why is my battery not holding a charge?

Accepted Answer

If your battery loses charge quickly, check whether it is fully charged and whether any devices remain connected and consume power. Battery self-discharge, continuous standby loads…

Question 7

Why does my battery have a shorter runtime than expected?

Accepted Answer

A battery's runtime depends on its usable energy, connected load, operating conditions, and system efficiency. High power consumption, frequent startup surges, low ambient temperat…

Question 8

Why is my battery overheating?

Accepted Answer

Battery overheating may be caused by excessive charging or discharging current, high ambient temperature, poor ventilation, an overloaded system, or a faulty charger. Stop charging…

Question 9

Why does my battery shut down automatically?

Accepted Answer

A battery may shut down automatically when its Battery Management System (BMS) detects an abnormal operating condition. Common causes include low battery voltage, overload, short c…

Question 10

Why is my battery not supplying power?

Accepted Answer

If your battery is not supplying power, check whether the battery is switched on and has sufficient charge. Inspect the output cables, connectors, and device connections. Make sure…

Question 11

Why is my battery not charging?

Accepted Answer

If your battery is not charging, first check the charger, power supply, cable connections, and charging settings. Make sure the charger is compatible with the battery's voltage and…

Question 12

How do I choose an energy storage product based on load power?

Accepted Answer

To choose the right energy storage product, first calculate the total power consumption of the devices that will operate simultaneously. The product's rated output power must meet …

Question 13

How do I choose the right mobile energy storage battery?

Accepted Answer

Kang Jun New Energy offers several mobile energy storage battery models, including KJ-48100-5, KJ-48200-10, KJ-48280-15, KJ48200-A, and KJ48200-B. The right model depends on your a…

Question 14

How do I choose the right battery capacity for my application?

Accepted Answer

The right battery capacity depends on the total power consumption of your equipment and the expected operating time. First, calculate the energy required in watt-hours (Wh) by mult…

Question 15

Which portable power station is suitable for outdoor use?

Accepted Answer

Kang Jun New Energy offers portable LiFePO4 power stations for outdoor activities, mobile work, and temporary power supply. Available models include KJ-32300W, KJ-32500W, and KJ-64…

Question 16

Which energy storage product is suitable for home backup power?

Accepted Answer

For home backup power, Kang Jun New Energy offers inverter-charger energy storage systems, including the KJ-4.2KW-8KWH and KJ-6.2KW-16KWH models. The suitable model depends on your…

Question 17

What is battery capacity and what does it mean?

Accepted Answer

Battery capacity describes how much electrical charge or energy a battery can store. It is commonly expressed in ampere-hours (Ah) or watt-hours (Wh). A higher energy capacity gene…

Question 18

What is a Battery Management System (BMS)?

Accepted Answer

A Battery Management System (BMS) is an electronic system that monitors and manages a rechargeable battery. It helps protect the battery by monitoring important parameters such as …

Question 19

What is a LiFePO4 battery?

Accepted Answer

A LiFePO4 battery is a rechargeable lithium-ion battery that uses lithium iron phosphate as its cathode material. It is widely used in energy storage systems because of its good th…

Question 20

Why do LiFePO4 batteries have a longer cycle life?

Accepted Answer

LiFePO4 batteries generally have a long cycle life because of their stable chemical structure and excellent cycling stability. Their lithium iron phosphate cathode can withstand re…

Question 21

How does a Battery Management System (BMS) work?

Accepted Answer

A Battery Management System (BMS) is an electronic system designed to monitor and protect a rechargeable battery. It monitors important battery parameters such as voltage, current,…

Question 22

What is the difference between LiFePO4 and NMC batteries?

Accepted Answer

LiFePO4 (Lithium Iron Phosphate) and NMC (Nickel Manganese Cobalt) are two different lithium-ion battery chemistries.

LiFePO4 batteries offer excellent thermal stability, a long c…

Question 23

Why are LiFePO4 batteries safer than other lithium-ion batteries?

Accepted Answer

LiFePO4 batteries are generally considered safer than many other lithium-ion battery chemistries because they have excellent thermal stability and a stable chemical structure. Thei…

Question 24

What is a LiFePO4 battery and how does it work?

Accepted Answer

A LiFePO4 battery, also known as a lithium iron phosphate battery, is a rechargeable lithium-ion battery. It stores electrical energy through electrochemical reactions. During char…

Question 25

How should I charge an energy storage battery correctly?

Accepted Answer

To charge an energy storage battery correctly, use a compatible charger or charging system that meets the battery's specified voltage and current requirements. Before charging, che…

Question 26

What is the difference between voltage, power, and energy capacity in an energy storage product?

Accepted Answer

Voltage (V) describes the electrical potential of a battery or system. Power (W) describes how much electrical power a device can deliver or consume at a given moment. Energy capac…

Question 27

How can I estimate the battery capacity I need?

Accepted Answer

To estimate the required battery capacity, first calculate the total power consumption of the devices you want to operate and determine how many hours you need to use them. Multipl…

Question 28

What should I check before using or connecting an energy storage product?

Accepted Answer

Before using or connecting a Kang Jun New Energy energy storage product, check the product model, rated voltage, capacity, power rating, connection ports, and charging requirements…

Question 29

How can I choose the right energy storage product for my application?

Accepted Answer

Kang Jun New Energy offers different energy storage products for various applications, including mobile energy storage batteries, portable LiFePO4 power stations, inverter-charger …

Question 30

How can I check the model, voltage, capacity, and power specifications of your energy storage products?

Accepted Answer

Kang Jun New Energy offers a range of energy storage products, including mobile energy storage batteries, portable LiFePO4 power stations, inverter-charger systems, multifunctional…

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FAQ и ответы по знаниям

Вопросы и ответы

Why is my portable power station charging slowly?

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