5
How To Properly Charge The Batteries
Once you are ready to charge your batteries, you want to ensure that you use the proper
settings to ensure that you are not over-charging or damaging your batteries. Although the
batteries have an included BMS system built in, it is always a best practice to make sure all
parts of your system are programmed correctly to prevent any possible damage to your
purchase. Below are the necessary specs for your
EG4 (48V/100AH) LL Battery
● Bulk/Absorption:
57.5V
● Float:
56.5V
● Battery charge temp range:
32°F - 113°F
● Battery discharge temp range:
-4°F - 131°F
● Cell charge temp protection:
<32°F or >158°F
● Cell discharge temp protection:
<32°F or >158°F
An Introduction To The BMS
What is a BMS?
BMS stands for
B
attery
M
anagement
S
ystem. This built in software is included with all EG4
batteries, and is designed to protect your battery and battery cells from a number of situations
that may damage or destroy your system. This protection also helps to keep battery cells
operable for a larger number of life cycles. Each EG4 battery is specifically configured to ensure
optimal performance and operation of the unit. The exact specifications of your battery can be
found after the definitions listed below. The BMS includes the following protections:
PCB Temperature Protection
The PCB Temperature Protection of the BMS will ensure that the PCB does not overheat. The
PCB is the Printed Circuit Board - much like a motherboard on a computer. This is the part that
contains most of the ‘brains’ of your battery. Much like a computer has fans and other cooling
devices to ensure it doesn’t overheat, the PCB Temperature Protection feature of your BMS will
turn the unit off in an event of overheating.
Cell Balance Protection
Cell balance is crucial when it comes to ensuring your battery is operating correctly and for
many years. Cell balance is the act of ensuring that each cell is within a specific range of all the
other cells of your battery. This is done automatically at all times - there is no need to manually
charge and discharge your battery to balance the individual cells.
Environmental Temperature Protection
In periods of extreme heat or cold, it may be dangerous for your battery to operate. Continued
operation in these conditions can cause permanent damage to your battery, electrical system,
and reduce the lifespan of your battery drastically. To ensure this does not happen, the BMS is
designed to measure the temperature while it is charging or discharging, and will stop the action
when it may cause damage.
