[How to deal with an electric car running out of power] Emergency charging solutions | Mobile battery box recommendations | Purchase tips

Mobile power box, some people call it outdoor power supply or mobile power supply. In addition to charging the electric vehicle when it runs out of power, the mobile battery pack's large capacity can provide temporary power in places where there is no power supply. For example, it can be used for digital products such as mobile phones and laptops, and even general household appliances such as fans and rice cookers. It is not only useful for electric vehicle owners, but also for users who park their cars or camp.

• Output power - The larger the output power (watt) value, the more types of electrical appliances can be driven in theory. For example, if the upper limit of the output power of a mobile power box is 200W, it means that it can provide power for electrical appliances below 200W.

• Voltage value - The voltage unit is V. The higher the value, the shorter the charging time.

• Electricity value - The unit of electricity is Wh, which means the amount of electricity consumed by an appliance with a power of 1 Wh after one hour of use.

• Connection interface - Some mobile power boxes will have a dedicated charging plug for electric vehicles to speed up charging. Secondly, pay attention to the number of 13A, USB-A, and USB-C sockets.

• Volume and weight - The larger the battery capacity, the larger the volume. Do not blindly pursue mobile power packs with large capacity to avoid wasting vehicle space and increasing load.

• Special functions - Mobile power boxes of different brands also have their own unique functions. For example, it can be charged by solar energy, connected to a mobile phone or support Bluetooth. Some brands may even allow for additional batteries or chaining to increase power.

• Professional certification - Mobile power boxes that are certified by professional organizations, such as SGS, the United Nations Lithium Battery Safety Transportation Testing Standard, or the Hong Kong Quality Assurance Agency HKQAA, are more secure for users.

EV300X / EV500X

Designed for high-power, high-capacity applications, it uses A+ grade lithium iron phosphate. In addition to charging electric vehicles, it can also support high-power consumption appliances such as air conditioners, induction cookers, and car grinders. The battery capacity is 3,000 Wh, and it has a GX-20 12V DC output, USB-A, and USB-C interfaces, and supports solar panel input. Based on single-power mode, a Tesla Model 3 can travel approximately 14.2 km in one hour of charging. In addition, the same manufacturer also has the EV500X with a battery capacity of 5,000Wh, which is suitable for users with higher usage.

Price: $19,850 (EV300X), $33,850 (EV500X)

Shell MP-1000

It is lightweight and weighs only 7.5 kg. Its built-in battery capacity is 999.2 Wh. In addition to supporting electrical appliances below 1100 W, it also supports direct charging with Tesla's original charging cable. The body is equipped with a USB-C port, which can output 60W fast charging and 10W wireless charging for mobile phones. It comes with a solar panel and a dedicated charger for charging.

Price: $6,999

ECOFLOW DELTA Pro

It has a battery capacity of up to 3600 Wh,and can be connected to another ECOFLOW mobile power box via X-Boost technology to expand the output to 4500 W. Compatible with 90% of third-party solar charging panels with MC4 connectors. When the weather becomes unpredictable, the intelligent Maximum Power Point Tracking (MPPT) function automatically adjusts to increase solar charging efficiency.

Price: $21,980

If the battery of your Tesla electric car shows a range of 0 km, Tesla will generally use the backup power to provide an additional 24 to 30 km, allowing it to drive to a nearby charging station for charging. If even the backup power is exhausted, the owner can call the Tesla customer service hotline and Tesla will arrange a tow truck or mobile charging service to charge the electric vehicle.