BB10012 Manual
Battle Born Batteries BB10012 | BB10012H Manual | Edition.PIM_BB10012Rev011_07282022 6
Connecting the Batteries in Series
Why Connect in Series?
When batteries are connected in series, current capacities remain the same, but the system voltage is additive. For
example, two BB10012|BB10012H batteries connected in series form a 24V 100Ah bank (shown in Fig. 4) and should
be charged using a bulk and absorption voltage of 28.8V, and a float voltage of 27.2V.
How to Make a Series Connection
Note: Battle Born 10012|10012H Batteries are capable of being connected in series up to 48V. DO NOT exceed a 48V setup or you will void the batteries' warranty.
1. Before making any connections, make sure to charge each battery up to 14.2V - 14.6V with a proper lithium
charger. ALL BATTERIES SHOULD BE AT THE SAME STATE OF CHARGE PRIOR TO CONNECTING, otherwise you will
h a multimeter.
2. Identify the positive and negative terminals. These are labeled and color-coded
red for positive (+), black for
negative (–).
3. Determine the appropriate finishing hardware set you will use. Verify that your bolt can fully seat into the nylok
insert of the nut. If multiple lugs are used, longer bolts may be required for the bolt to fully seat into the nylok
insert of the nut.
4. Make the proper cable connections to the negative of the first battery. Please reference Fig. 1 for the proper order
of hardware.
5. When connecting to your battery terminals, DO NOT finger tighten. Use a torque wrench to torque your
hardware to the specification of 9 to 11 ft-lbs. Failure to adequately secure connections can result in severe
damage and will void your warranty.
6. Connect the other end of your cable to the positive terminal of the other battery you are connecting to. Repeat
step 4.
7. Repeat steps 3-6 for additional batteries, but DO NOT exceed 48V. An example of a correct series connection can
be found below in Fig. 4.1 and Fig. 4.2.
Figure 4.1: Two 10012 Batteries Connected in Series to create a 24V 100Ah Battery Bank
Figure 4.2: Four 10012 Batteries Connected in Series to create a 48V 100Ah Battery Bank
*Individually charge each battery to 100% prior to connecting your battery bank in series*