As David held the nut in the back, John tightened the bolts needed to connect the charging port to the battery box. This port will be used to charge the batteries inside the batter box to power the Car.

We then connect the pack rail at a slight angle inside the batter box. The use of the pack rail is to allow different wires to go to different areas, similar to a circuit breaker in a house.

Next,  we installed the relay to the back of the battery box. A relay is an electrical switch that opens and closes a circuit by receiving a signal or signals from outside sources.

After we installed the relay to the back of the box, we organized all the bolts and screws along with their washers and nuts so that everything was easier to locate and use.

We then went to install the AC relay, located to the left of the pack rail on the bottom of the box. There were no holes for us to attach the AC relay, so we have to drill our own later on after we have more information on it's placement.

This is the battery box with the components we added today. These included the battery socket, relay, pack rail, and battery box. We were unable to install the AC relay.

Using phillip's and flat head screwdrivers,  we install the shunt to the angled interior of the battery box. The shunt is used to separate the independent values of AC and DC voltage before flowing into the batteries.

Connecting wires respective to a schematic, these wire connections lead from the charging port to the pack rail in order to allow charging to anything connected to the pack rail.

Connecting the shunt to the pack rail by tightening a screw through the ring termination on the end of 2 wires. The batteries will run power through the shunt, and the wires are used to measure the current electrical flow which will be routed to a meter on the dashboard and displayed to the driver.

Wiring the relay on the inside of the wall to the pack rail, this connection allows the relay to open and close the circuit to receive current from the main batteries.

Using a drill with a 24 bit size, we drilled two holes for the AC relay on the inner angled wall of the battery box.

We then screwed the AC relay into the drilled holes, and used 2 wires to connect the relay to the pack rail. This connection allows the AC relay to control the flow of AC voltage throughout the full circuit.

Organizing all of the parts needed to further assemble the battery pack.

Using wires to link each cell together allowing them to eentually charge and be used as one unit.

Batter after linking a quarter of the batteries together to be charged, this section of the battery will then be charged as it is.

Locating the BMS Harness set, a collection of various wires used to make connections to the battery management system.

The state of the pack rail after following a wiring schematic, each wire on the wire set was placed in it's respective slot on the pack rail along with one wire which went to the Relay on the inner wall.

Next, we have to build the battery management system. We started by attaching the orange metal bracket to the charger using a 7/16 ratchet to tighten 4 bolts down.

When starting the Battery Management System, the holes were not big enough to fit over the shock absorbers, so we had to use a "J" drill bit to widen the holes.

After the holes were widened, we were then able to attach it to the rest of the system.

After having issues installing the battery management system, we were able to properly install and secure it to the battery tray.

Testing the voltage of the battery cells while charging. Should have a reading of around 3.6 V and around 0-30 amps when working correctly. This ensures that the battery was wired and is charging effectively. 

Image of the power supply after being hooked up to the connected battery, need to find and add a missing fuse to the supply wires in order for the supply to begin charging at the correct levels. 

After some trouble shooting, the correct part was able to be added to the system, providing the team with the correct readings in both current and voltage, one group of these cells should take about a week to charge. 

Our first step today was plugging the wires into the Battery Management System to ensure the wires could reach and that it was in the correct spot.

After plugging in the Battery Management System in, we secured all the wires to the side of the battery box using a C clamp and a bolt.

This is the completed battery box. On the bottom right is the pack rail, where all the wires connect. The orange and gray part is the Battery Management System, and the Shunt is located the front at an angle.

After letting the batteries charge for about 72 hours, they were full charged and the multimeter reads about 3.6 Volts.

Here, it shows 2 Battery Packs. Each pack contains 8 batteries. The 1st pack (top) is full charged, and the 2nd pack (bottom) is charging.

Since we finished the battery box, we installed it into the frame of the car in the hood.

This is the completed battery pack. It is shown here wired in series, or in an alternating order, this ensures the same current flows through all batteries.

This is the contactor, it is connected to the battery pack with a fuse and it is used to connect the batteries and allow flow to each pack of cells.

This is the shunt with all of the wires and connections attached. The large orange wires connect to the battery and carry voltage from the dashboard.