JLG X20JP - X600AJ Service Manual - Manual (Page 144)

SECTION 3 - CHASSIS & TURNTABLE
3-120 – JLG Lift – 3121623
BATTERY CHARGER
Figure 3-50. 48 Volt Battery Charger
Figure 3-51. 72 Volt Battery Charger
Battery charger transforms the current coming from the
local network (110-230 Volt 50-60Hz) to 48 (72) Volt direct
current, necessary to charge the cells.
Every battery charger is different depending on the spe-
cific local network, so it’s not possible to use the charger
for 220 Volt on 120 Volt network and vice versa.
As inverter and BMS, the battery charger is connected to
the can bus line and by the can bus line the charger
receives from the BMS the input of the current required to
charge the cells.
At the beginning of the charge, the BMS asks the maxi-
mum current possible. In the following step of charging,
the current required decreases according with the cells
voltage level.
Both the battery charger for 48 and 72 volts packs, have a
led with a flashing code explaining the state of the charg-
ing process.
The position of the lamp is showed in following pictures.
Figure 3-52. Battery charger led on 48 Volt battery pack
48 Volt battery charger
Led Light Meaning
Red
1 st charge step –maximum current possi-
ble to the cells
Red Flash-
ing
2 nd charge step – Cells under charge
with reduced current
Yellow
3 rd charge step – Cells under light
charge
Yellow flash 4 th charge step – Balancing and main-
taining
Green/Red
flash Error – The battery pack is disconnected
(contactor open)