When reassembling, the question of volume and space must be considered. At equal capacity, the volume of lithium batteries is only half that of lead acid batteries.
So it can definitely be installed, but you need to pay attention to some shape and packaging issues. After all, the space in the car may not be in exactly the same direction as the battery. You need to consider fixation and reliability to avoid vibrations and falls. And if economic conditions permit, it is of course hoped that the capacity of the modified lithium battery will be as large as possible. It is therefore necessary to make full use of the space and choose batteries with reasonable shapes for the layout. If you replace it with the same capacity, because there is a lot of space left, you need to find something to fill the extra space when replacing to avoid the battery atlithium won't shake and fall while driving.