And this is what I also bought, was on a lighting sale? at Amazon at the time. Now that I can open the seat while on the road and access the battery I can always make sure when commuting to work I am ready for any unforeseen circumstances to occur with respect to getting home again.
As typical with these starters its just up to four flat packs of lipoly cells and connected to that is a BMS (Battery Management System). This can recharge the battery and ensure each cell is balanced.
Then plugs to use this unit as a portable power station to recharge phones, laptops, etc.
Then a third separate thick cable wired circuit to the batteries for the smart jump starter cable unit to plug into.
I got this one as it had a full LCD display of exact battery percentage versus just 4 lights to show estimated battery charge state. Plus this one had its own carrying case included.
013 Car Jump Starter, 3000A Jump Starter Battery Pack (up to 10L Gas & 8L Diesel Engines), 12V Lithium Battery Booster for Vehicles, Portable Jump Box with LED Display