A power maintaining method of electric vehicle includes the following step. In step 01, an energy power is provided by a main battery pack to drive a first electric vehicle (EV) moving to a first power supply station. In step 02, a first swap battery pack is installed on the first EV at the first power supply station, and the first swap battery pack is electrically connected to the main battery pack of the first EV so that the main battery pack is charged by the first swap battery pack. In step 03, the first EV is driven to a second power supply station from the first power supply station. In step 04, the first swap battery pack is uninstalled from the first EV at the second power supply station. In addition, an electric vehicle and a power supply station is disclosed in the present application.

A battery panel assembly for a material handling vehicle having a battery is provided. The battery panel assembly includes an inner counterweight panel configured to couple to the battery assembly. The inner panel including a battery service cutout. The battery panel assembly further includes an outer panel configured to couple to the inner panel. The outer panel includes a cutout configured to align with the battery service cutout and an access door dimensioned to cover the cutout.

A battery system for an electric motor vehicle comprises first and second battery cartridges that are installed in corresponding first and second battery compartments of the electric motor vehicle. The first battery cartridge has a power connector port with at least one of a shape, size, configuration and orientation that is different than the corresponding power connector port of the second battery cartridge. The first and second battery compartments are physically spaced apart and electrically coupled together by a bridging power cable. The bridging power cable comprises first and second connector ends that extend respectively into the first and second battery compartments, and the first connector end mates more easily with the first power connector port than with the second power connector port, and the second connector end mates more easily with the second power connector port than with the first power connector port.

Battery swapping equipment for an electric vehicle and a positioning method for battery swapping equipment. The battery swapping equipment includes: an unlocking mechanism configured to unlock a battery pack locked onto a fast swapping bracket of the electric vehicle; an image collection module to collect a first actual image containing the lock base during an unlocking process of the battery pack; a storage module configured to store a first standard image collected by the image collection module when the battery swapping equipment is located in a battery swapping position, the first standard image including the lock base; a positioning judgement module to judge whether the battery swapping equipment is located in the battery swapping position according to the first actual image and the first standard image; if not, generating a first moving instruction according to a judged result; a moving mechanism to move according to the first moving instruction.

A locking device includes a lock base. The lock base includes a lock body, a surface of the lock body being provided with a lock groove recessed towards the interior of the lock body, the lock body being internally provided with a lock tongue groove and a lock tongue movably mounted in the lock tongue groove that is in connection with the lock groove; a lock connecting rod movably connected to the lock base through the lock tongue and including a rod member, the rod member driving the lock tongue to move in the lock tongue groove; and a lock shaft including a shaft seat and a shaft rod perpendicularly arranged to a surface of the shaft seat, the shaft rod being inserted into the lock groove of the lock base to perform locking. A fixing seat and an electric vehicle comprising the locking device are disclosed.

A electric personal mobility device may include a main body including a rider-support-platform structure and a steering column coupled to the rider-support-platform structure. The electric personal mobility device may further include a wheel arrangement, having at least one front wheel and at least one rear wheel, supporting the main body. The at least one front wheel may be steerable by the steering column. According to various embodiments, the rider-support-platform structure may include an elongate hollow housing structure enclosing an internal space partitioned to define a first and second longitudinal-internal-battery-compartments. Each longitudinal-internal-battery-compartment may be extending lengthwise along respective longitudinal side of the elongate hollow housing and having a respective rear opening at an aft portion of the elongate hollow housing structure. The rider-support-platform structure may include a rear-wheel-fork fixedly extending longitudinally from the aft portion between the rear openings. The rear-wheel-fork may be holding the at least one rear wheel.

Provided is a lock mechanism, wherein the lock mechanism includes a lock base, the lock base is provided with an opening and a cavity extending from the opening, the opening is used for the lock shaft mounted to the battery pack to enter the cavity, the lock mechanism further includes: a lock assembly, the lock assembly is connected to one side of the lock base opposite the lock shaft, the lock assembly is moveable relative to the lock base, and the side of the lock base opposite the lock shaft extends into the cavity or exits the cavity; wherein, the lock assembly is capable of preventing the lock shaft from exiting the cavity from the opening when the lock assembly extends into the cavity; the lock assembly is capable of allowing the lock shaft to exit the cavity from the opening when the lock assembly exits the cavity.

An energy storage device transport system (1, 1A) includes an energy storage device (40) which can move by self-propelling and a moving body (30) which has an accommodation portion (31) for accommodating the energy storage device (40). In the energy storage device transport system (1, 1A), the moving body (30) accommodates the energy storage device (40) and moves to transport the energy storage device 40. The energy storage device (40) moves inside the accommodation portion (31) of the moving body (30) by self-propelling and changes a position in the accommodation portion (31) of the moving body (30).

A system for replacing a battery of a mobility is proposed and includes: a battery mounting part provided on an outer surface of a mobility and having a mounting space defined therein, the mounting space being open to an outside, with a battery mounted in the mounting space, and a battery replacement module having a new battery provided therein and mounting the new battery in the mounting space of the battery mounting part after removing the existing battery to be replaced by rotating the new battery and the existing battery together when the battery replacement module approaches the battery mounting part of the mobility.

A service cart and associated apparatus that is suitable for servicing electric vehicles and vehicle batteries. The service cart may comprise a frame having a number of members that may be arranged in a compact configuration. The service cart may comprise a number of support pads that may be adjustably arranged with respect to the frame. The support pads may comprise an overload protection mechanism having a break pin. The service cart may comprise a detachable handle operable to selectively disengage a number of brakes on the cart. The service cart may comprise a tow hitch suitable for detachably coupling an external tow device.