Battery
Open Frunk. The pushpins have a depression on two sides. Insert a flat tip #2 screwdriver and raise the inner part of the pushpin. Then reposition the screwdriver to raise the outer part, then remove both. Remove all 4, the Frunk “bucket” will lift out after you remove the black panel you see aft of the Frunk lid. This reveals the battery. If you have a charger, use it. A trickle charger probably won’t work. If you don’t, remove the rubber strap, remove the metal panel that secured the battery. Tilt battery forward at the top, use a #2 Crosspoint (Phillips ) and remove the black ground wire. Then remove the red wire on the other terminal. Lift out battery.
Take to any autoparts store for testing. If good, have it charged. If bad, replace. There are lots to choose from. We have installed quite a few Duracell batteries from Batteries plus. Less expensive, widely available. Your choice. There are lots to choose from; just make sure it is configured like yours: positive and negative terminals in the same place. With a charged battery, drop into mount, secure red terminal first, then black, then plate and strap. Return bucket, install pushpins, close Frunk, ride. Call if you need help. Number below. Joe