RAMFAN EX150Li, Руководство пользователя, Страница: 7 / 14

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EX50Li
DATE
08/27/19
ITEM#
LABEL#
LB9113
REVISION -
DIMS*
1.5748 x 2.25 in
MATERIAL MainStock: TEC4911 4Mil Vinyl Flex White TC Vinyl UL 50#SCK w/Permanent Adh
COLOR Black, Red
- Label Created 08/27/19
Revision Description Date
HISTORY - LB9113
Example of label placed on batter base

ALIGN
BATTERY
EX150Li

ALIGN
BATTERY
EX50Li
LB9113

ALIGN
BATTERY
EX150Li

ALIGN
BATTERY
EX50Li
LB9113
• Gently pull up the yellow handle to remove the battery from the holder.
Battery Charger Warn Label
DATE
07/07/20
ITEM#
LABEL#
LB9114
REVISION -
DIMS*
1.25 x .875 in
MATERIAL MainStock: TEC4911 4Mil Vinyl Flex White TC Vinyl UL 50#SCK w/Permanent Adh
COLOR Black
- Label Created 07/07/20
Revision Description Date
HISTORY - LB9114
LB9114
40V & 52V
battery packs
are
NOT
interchangeable
Battery Operation Procedures
Please full charge battery before first use
Using One Battery
• The EX150Li allows the option of using one or two battery packs.
• When using one battery, simply plug the battery into either one of the two battery
connectors (left or right).
• Be sure to secure the unused battery connector by placing electrical tape over the
contacts.
• When running fan on single battery, operating power is limited to reduce maximum
discharge current--extending useful life of battery.
Using Two Batteries
• The EX150Li offers a true redundant dual battery system.
• When using two batteries of identical charge level, batteries are connected in parallel to
increase significantly the total runtime and airflow performance.
• When using two battery packs, each pack functions independently and is isolated
from the other so that if one pack should fail (open circuit, short-circuit, or become
discharged) the other battery will provide power to operate the system.
• When using dual batteries, it’s important that both batteries be of the same charge
level and ideally of the same age and condition.
• It’s normal for one battery to discharge slightly more than the other. This is the nature
of a truly redundant isolated battery system.
• The battery that has the higher voltage will discharge at a faster rate (until its voltage
equals the other battery).
• We recommend that use both batteries on the Same State of Charge (or at least as
close as possible). If this is not possible, the controller will eventually bring batteries to
a balanced charge level.
• To keep battery packs healthy for long-term use, a simple implementation of cell-
balancing, internal to the battery pack, includes a FET placed in parallel with each cell
and controlled by a comparator for simple voltage based algorithms that turn-on the
bypass FETs during the onset of voltage differences, controlled by a microcontroller
for more complex and effective algorithms that can work continuously regardless of
variations of voltage differences.