Memory Position and Settings per Battery Type
The “Auto” modes for NiCd and NiMh battery types are preferred whenever you have a battery pack made from
quality cells and in good condition and balance. The EOS 1210i charges NiCd and NiMH in Auto Mode based on an
intelligent algorithm which maximizes performance and minimizes charge time.
These two pre-configured memory positions cannot be edited:
A1 - NiCd Automatic
A2- NiMH Automatic
Ten additional memory positions - M0 to M9 - allow you to choose parameters for charging or discharging, such as
battery type (NiMH, NiCd, LiPo, Lead-Acid), battery capacity, discharge rate, cutoff voltage or temperature, and
more.
Charging - Let’s try it once to learn it….
ENTER: Select Memory Position to change / Charge Start, Charge Stop
SETUP: Selects parameters for editing in turn
UP/DOWN: Scroll through memory positions / Change parameter settings
After connecting the charger to a suitable power source, the LCD monitor will show the
configuration used in the previous charging session.
After the welcome screen, press ENTER then the UP button to scroll through the pre-set memory positions. Stop
on M8 (NiCd 24 cell). Press ENTER to choose Memory slot M8. Now press SETUP, and you will see that the text
for battery type is blinking (“NiCd”), and screen title has changed to BATTERY SETUP. Press the UP (or DOWN)
button to scroll through battery type selections. Press SETUP again at LiPo to set the battery type to Lithium
Polymer; the cursor then moves to Voltage Selection. For lithium polymer, voltages are listed as number of cells in
series, or “S”. Press the UP key to choose “4S”, then press SETUP again. Press DOWN repeatedly to set Battery
Capacity to 2500 (mAh), then press SETUP. The display changes from BATTERY SETUP back to MEMORY SELECT.
Now, press the DOWN button to move away from MEMORY SELECT screen, and go to CHARGE MODE screen.
Note that CHARGE RATE (C:) will be 2.5A to start. This is default behavior, and is a “One C” charge rate based on
the 2500mAh capacity you set earlier, at the BATTERY SETUP screen. Now keep pressing the UP key, until the
Charge Rate display stops changing. You will see that it allows you to set up to 5A charge rate maximum, which is
“2C” for our 2500mAh battery example. Note: Hyperion batteries all support charge rates of 2C+. But do check
that your battery brand is capable of charge in excess of 1C before making such selections. See Addendum later
as to why rates higher than 2C should be avoided.
Now, press SETUP again, to select estimated Terminal Capacity of Charge. Press the DOWN key, until the display
shows 90%, then press SETUP. Note: normally this setting is 100%, but we have altered it just to see how it is
done, for training purposes. (see notes on TCS later in Addendum)
At this point, you have altered memory slot #8 to charge 4S 2500mAh LiPo batteries at 2C rate, to 90% of battery
capacity. We should still be at the CHARGE MODE screen. You should not have anything connected to the output
port at this time. Now, we are going to press the ENTER key to start “charging”, but will get a CONNECT ERROR
from the charger; that’s ok, but do be ready to press ENTER again to stop the Warning buzzer. So press ENTER
now, then ENTER again after the warning tones. Finished testing? Ok, now you know how to configure your new
EOS 1210i, to charge a lithium battery pack!
More About BATTERY SETUP and CHARGE MODE Screens
Consult the documentation or labels provided with your battery to determine the correct capacity setting. It is
very important to get this right, as the charger uses the capacity setting to determine nominal charge rate
(amperage), TCS percentage, and safety termination. Incorrect settings could damage the battery, and could
even cause an accident.
Lithium: Please be absolutely sure that you know the type of lithium battery you are charging, the
capacity in mAh, and the number of cells wired in series! The EOS charger is only for lithium with 3.7V
per cell nominal. If your battery does not have a number for “S” count on the label, like “3S”, but does
show the nominal voltage, use the chart below to set the correct “S” when charging:
Number of Lithium Cells Wired in Series (S)
1S
3.7V
2S
7.4V
3S
11.1V
4S
14.8V
5S
18.5V
6S
22.2V
7S
25.9V
8S
29.6V
9S
33.3V
10S
37.0V
11S
40.7V
12S
44.4V
