Battle Born Batteries BB8D User manual

The LiFePO4 Battle Born Battery
The pinnacle of quality and safety at an unbeatable price point.
Get out there, stay out there.TM
Questions? Call 855-292-2831 or email us at [e-mail]
Please Read Before Installation
Model BB8D
270 Amp Hours
Deep Cycle Efficiency and Performance
The new BB8D may look like your everyday 8D
battery, but that is where the similarities end.
This 12V deep cycle battery is rated for 270Ah and
weighs roughly 80 lbs. That’s over 50 lbs. lighter than
a standard lead-acid 8D. Utilizing the same stable
LiFePO4 chemical composition and built-in battery
management system (BMS) technology as our other
products, the BB8D is truly the biggest bang for your
buck.
The BB8D is perfect for large marine applications, or
for off-grid applications. This battery is capable of
being discharged to a 100% depth of discharge and
charges 5 times faster than lead-acid. With the BB8D,
the switch to lithium has never been easier.
Built to last 10 to 15 years and backed by an industry
leading 10-year warranty, at Battle Born Batteries we're
making battery anxiety a thing of the past.
•270 Amp Hour, 12 Volt Battery
•LiFePO4 Chemistry
•3000-5000 Cycles
•Dimensions (L x W x H):
21.29” x 11.59” x 10.01”
*See QR Code below
•81.4 lbs.
•Operating Temp Range:
-4°F (-20°C) to 135°F (57.2°C)
•Water Resistant and Sealed
(Batteries should not be submerged)
•Designed and Assembled
in the USA
•Built-in BMS
(Battery Management System)
Specifications
• Absorption Voltage:
14.2V to 14.6V
• Float Voltage:
13.4V to 13.8V
• Equalization Voltage:
14.4V (if Applicable)
• Absorption Time:
60 to 90 minutes
per 270Ah battery bank
•No Temperature Compensation
•Charge Rate: .5c
Charging ParametersBuilt-in Battery
Management System
Our BMS keeps you and your battery safe and
ensures your battery will last for many years.
•300 Amps Continuous
•500 Amps Surge for 30 Seconds
•½ Second Surge for Loads Over 500 Amps
• High/Low Voltage Protection
• Short Circuit Protection
• High/Low Temperature Protection
• Cold Charging Protection
• Automatic Cell Balancing at Top of Charge
*Please Note: This built-in protection will reset after 5
seconds in most fault conditions. Disconnecting the
battery from loads will also reset the BMS.
*QR Code

Questions? Call 855-292-2831 or email us at [e-mail]
BB8D FAQs
Can LiFePO4 batteries be mounted in any position?
You can mount our batteries in any position. Our batteries use a non-liquid based chemistry
and do not emit any fumes or gases. When mounting, make sure to properly secure and
protect your terminals.
How can I check my battery’s voltage?
If you do not have a battery monitor, you can purchase a multimeter to monitor the voltage of
your batteries. Please reference the voltage vs.capacity table on the right.
How do I properly store my LiFePO4 batteries?
We recommend bringing the Battle Born Batteries to a 100% state of charge. Then,
disconnect the battery from any loads by removing the negative cable from one battery. On
average, the batteries lose approximately 2-3% capacity per month. This is subject to
increasing if placed in extreme environmental conditions while in storage.
What is the maximum amperage I can charge my batteries?
Our batteries allow a charge of 135 amps per 270-amp hour battery bank. For more than one
battery, you can simply take the entire amp hours of the bank and cut it in half (e.g. a total
of 540-amp hours can be charged at 270 amps).
Is it necessary to charge my batteries out of the box?
Yes, if you are connecting your batteries in series you will need to charge your batteries out of
the box. If you are connecting in parallel then you do not need to. See the diagram below.
Parallel Connection,12V540Ah bank
Increases Ah, Voltage stays the same.
Series Connection,24V270Ah bank
Increases Voltage, Ah stays the same.
The LiFePO4 Battle Born Battery
The pinnacle of quality and safety at an unbeatable price point.
Negative Load
Positive
Load Positive
Load
Negative Load
Get out there, stay out there.TM
For more FAQs, scan the QR code!
To use the QR code, open the QR reader or camera on your smart phone. Hold your device over the QR code so that the code is clearly visible within the device’s screen. Your phone will automatically scan the code and pull in the corresponding weblink. Check out our other models!
To see our other battery models, go to
battlebornbatteries.com/product-category/lifepo4-batteries/
or scan the QR code to the left.
FAQ QR Code
Battery Line
QR Code
Voltage vs Capacity
For a single battery at 0A
Voltage Level
Remaining Capacity
14.4V 100%
100%
99%
90%
70%
40%
30%
20%
17%
14%
9%
13.6V
13.4V
13.3V
13.2V
13.1V
13.0V
12.9V
12.8V
12.5V
12.0V
10.0V 0%
WWarrantyarranty
Every Battle Born Battery is backed by an industry leading
10-year warranty. Your batteries are assembled in Reno, NV,
making it easier and quicker in the event of a warranty issue!
Warranty is non-transferable.
Visit battlebornbatteries.com for additional warranty information.
Quick Installation Tips:
•Torque specifications - 9 to 11ft-lb.
Do NOT finger tighten
•Our batteries do not require ventilation since they do not
emit fumes or gases, so you can put them in an enclosed
areas.
• Our batteries can be mounted in any orientation that is
suitable for you.
•Do NOT reverse the polarity of the battery, as this will
damage both the battery and the device connected.
• The batteries come equipped with a 3/8" hole on
the terminal to fit either a 3/8" or a 5/16" bolt.
Please see the manual for additional installation instructions.
Charging
Resting