Batteries and Charging
30 Charging and Battery Care
Charging and Battery CareBatteries and Charging
GENERAL INFORMATION
This section of the owner’s manual covers the charger, onboard
battery modules and batteries. All information regarding charging
and keeping your Empulse’s batteries in peak operating condition
will be covered here.
Your Empulse is equipped with:
1. Seven (7) rechargeable lithium-ion (BPM15/90) battery modules
that use lithium nickel-manganese-cobalt technology to provide
the lithium-ion advantages of high energy, light weight, and
long cycle life without the fear of thermal runaway event under
abuse conditions. Each battery module is rated at 1.33 kWhr for a
total of 9.3 kWhr onboard. Each of the seven battery modules
contains four cell stacks for a total of 28 onboard cell stacks. Each
cell has a nominal cell voltage of 3.7 volts for a total battery stack
voltage of just under 103.6 volts. Under normal operating
conditions, your Empulse’s battery modules are rated for
thousands of charge cycles.
2. A Battery Management System (BMS) that monitors each battery
module’s State of Charge, current, cell voltage, and temperature.
3. An onboard charger connected to a standard J1772 charging
port connector.
Maximizing Battery Capacity and Battery Life
By following the tips listed below, you can assure long life and high
performance of your Empulse’s battery modules.
• Operate your Empulse at temperatures below 104°F (40°C) and
charge at temperatures between 32°F (0°C) and 113°F (45°C).
• Cell balance as often as possible. Battery module cell variability
and environmental conditions can cause a slight state of charge
imbalances between cells. After the normal charge cycle
(batteries charged to 99%), cell balancing starts. During cell
balancing, the battery modules, BMS and charger attempt to
perfectly match all of the cell voltages.
• Cycle the batteries (complete charge and discharge) every three
months.
• Charge battery modules fully if your Empulse has been stored for
more than a month.
Note: Leaving your Empulse powered up in charge mode with charging
cable connected will maximize your battery modules’ performance
when not in use.
Operating in Low Temperatures
The batteries are designed to operate at temperatures as low as 15°F
(-10°C). When charging or riding in low temperatures, the battery
modules will automatically go through a warm-up phase to optimize
their performance.
Empulse.book Page 30 Thursday, June 27, 2013 11:03 AM
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