MED HP Batteries
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Installation & User Guide
Installation & User Guide
HP Batteries; Medium Size
11
Batteries OFF
Firstly, ensure that all batteries are turned OFF.
The LED backlight of the blue power switch will be
off, showing that charge and load has been disconnected.
Connect Wiring
Connect the positive terminal of the battery first and immediately replace the terminal cap, then
connect the negative terminal and immediately replace the terminal cap
. Connect the ring
terminals over the terminal post and add the washer and nut and tighten securely (10Nm).
EXCESSIVE FORCE WILL DAMAGE THE TERMINAL MOUNTS. Replace each terminal cap so that it
locks tight with the nut. The red and black terminal caps are there for safety protection and to
prevent accidental shorting of the terminals from a metal object such as a spanner. TAKE CARE NOT
TO SHORT CIRCUIT THE BATTERY DIRECTLY BETWEEN THE POSITIVE AND NEGATIVE TERMINAL
POSTS, OR THE POSITIVE POST TO ANY METALLIC OBJECT!!!!
Connect Isolators
Turn ON / connect any isolation switches / circuit breakers / fuses to the inverter / motor controller.
We recommend not to use isolation switches or circuit breaker between the batteries and
inverter/motor controller, as this can cause issues with inrush currents into capacitors if the inverter is
connected when the battery is already on;
this is detected by the BMS as a short circuit condition,
which may trip overload protection. Alternatively if there is an isolator switch / circuit breaker / fuse
between the battery and inverter, it should be connected
before
the battery is turned ON.
The batteries limit inrush current by using a soft-start function during the first few seconds after the
battery is turned on. However this relies on the inverter already being connected.
Other DC loads that draw current as soon as they are turned on may interfere with this soft-start
function; if possible they may need to be disconnected when the battery is first turned on.
Batteries ON
TURN ON THE BATTERY. This is the square
blue
POWER pushbutton inside the protective cover. If
the blue backlight behind the button is on, the battery is on as shown in Figure 5-1. If not, push the
button to turn the battery on.
You can reset the battery by pressing the power button off and on again.
Resetting the battery is sometimes necessary when using ‘smart chargers’.
