Jonker Sailplanes JS3 RES - 10 High Voltage Batteries; Overview; Figure 10-1 Battery Overview

JS-MD 3 RES Maintenance Manual
Supplement
MD11-AMM-00-002
Issue: 00
Rev. 00
Rev. Date: 23-May-22
Page 10-1
10 High Voltage batteries
The Emectric BM384 battery system consists of 384 cells per battery which have a total nominal
voltage of 350 V, total nominal capacity of 11.2 Ah, and maximum usable energy of 4.2 kWh.
Batteries are sealed to minimize the risk of a battery fire. The type of Li-Ion cells used in the
batteries is sensitive to excessive heat and may spontaneously ignite at temperatures above
150°C. Cell life is also reduced with high temperatures. Operation above 60 °C should be
avoided. The battery pack is designed to prevent the propagation of fire in a single cell. When
a cell ignites, approximately 12 l of high temperature, poisonous gasses will be released
instantaneously. These gasses are directed via the exhaust nozzle to the outside of the aircraft.
Battery requires no internal maintenance.
WARNING: Do not inhale any gasses as the result of a battery fire.
WARNING: Battery maintenance must be done by the supplier or OEM.
Overview
Figure 10-1 Battery overview
No
Description
No
Description
1
Handle
2
Battery status indicators
3
Connector
4
Alignment pin
5
Exhaust vent
6
Battery latch
1
2
3
4
6
5