Description Solder Joint Description: B – Connect the negative of the battery pack B1 Connect the battery 1 to the contacts in battery 2 B2 Connect the battery 2 to the contacts in battery 3 B3 Connect the battery 3 to the contacts in battery 4 B4 Connect the battery 4 to the contacts in battery 5 B5 Connect the battery 5 to the contacts in battery 6 B6 Connect the battery pack positive
