Charger Instruction Manual
This manual provides instructions for GIANT e-bike chargers.
Charger Models
CAUTION: ⚠️ Use only a suitable charger provided with the e-bike or provided by an authorized dealer.
- Smart Charger 4A, 48V, dual
- Smart Charger 4A, 36V, dual
- Smart Charger 6A, 36V, single
- Smart Charger 4A, 36V, single
- Fast Charger 3A / 4A
Smart Charger 4A, 48V, dual
The 4A Smart Charger is a powerful charger for high capacity EnergyPaks. It continuously monitors the internal state of the battery and adjusts the charging process for the fastest charging speed and maximum battery lifespan.
Parts Description
A. AC socket (110V~240 V)
B. Charger unit
C. 60% charge indicator LED/button
D. 100% charge indicator LED
E. Charge socket
Diagram Description: A visual representation shows the charger connected to a battery. Label A indicates the AC socket, B the charger unit, C the combined button and LED, D a separate LED, and E the charge socket. The AC power cord is depicted connecting to a wall outlet.
LED Status Description
A. LED Indicator
B. Button / LED
Diagram Description: A diagram of the charger unit highlights the LED indicators. Label A points to the primary LED, and B points to a button that also serves as an LED.
| LED | Color | Behavior | Status |
|---|---|---|---|
| A | RED > GREEN > OFF | Sequence | Power on self test |
| B | GREEN > RED > OFF | ||
| A | RED | On | No battery connected |
| A | GREEN | Blinking (0.5 sec interval) | Charging active |
| A | GREEN | On | Charging completed |
| A | GREEN | Slow blinking (1.0 sec interval) | Battery charging over temperature protection |
| B | YELLOW | Push button B | Activate storage charge (60%) mode |
| A | RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Voltage Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Current Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Temperature Protection) |
| A | RED > GREEN >OFF | Sequence | Charging issue (Short Circuit Protection) |
If there is a charging issue, please check the charging circuit, and disconnect the AC source of the charger, and then reconnect it after the LED goes out.
Smart Charger 4A, 36V, dual
Parts Description
A. AC socket
B. Charger
C. Button
D. LED
E. Charge socket
Diagram Description: A visual representation shows the charger connected to a battery. Label A indicates the AC socket, B the charger unit, C the button, D an LED, and E the charge socket. The AC power cord is depicted connecting to a wall outlet.
LED Description
A. LED
B. Button
Diagram Description: A diagram of the charger unit highlights the LED indicators. Label A points to the primary LED, and B points to a button.
| LED | Color | Behavior | Status |
|---|---|---|---|
| A | RED > GREEN >RED | Sequence | Power on self test |
| A | RED | On | No battery connected |
| A | GREEN | Blink (0.5 sec interval) | Charging active |
| A | GREEN | On | Charging completed |
| A | GREEN | Blink (1.0 sec interval) | Battery charging over temperature protection |
| A | YELLOW | Push button B | Activate storage charge (60%) mode |
| A | RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Voltage Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Current Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Temperature Protection) |
| A | RED > GREEN >OFF | Sequence | Charging issue (Short Circuit Protection) |
If there is a charging issue, please check the charging circuit, and disconnect the AC source of the charger, and then reconnect it after the LED goes out.
Smart Charger 6A, 36V, single
Parts Description
A. AC socket
B. Charger
C. Button / LED
D. LED
E. Charge socket
Diagram Description: A visual representation shows the charger connected to a battery. Label A indicates the AC socket, B the charger unit, C the combined button and LED, D a separate LED, and E the charge socket. The AC power cord is depicted connecting to a wall outlet.
LED Description
A. LED
B. Button / LED
Diagram Description: A diagram of the charger unit highlights the LED indicators. Label A points to the primary LED, and B points to a button that also serves as an LED.
| LED | Color | Behavior | Status |
|---|---|---|---|
| A | RED > GREEN > OFF | Sequence | Power on self test |
| B | GREEN > RED > OFF | ||
| A | RED | On | No battery connected |
| A | GREEN | Blink (0.5 sec interval) | Charging active |
| A | GREEN | On | Charging completed |
| A | GREEN | Blink (1.0 sec interval) | Battery charging over temperature protection |
| B | YELLOW | Push button B | Activate storage charge (60%) mode |
| A | RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Voltage Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Current Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Temperature Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Short Circuit Protection) |
If there is a charging issue, please check the charging circuit, and disconnect the AC source of the charger, and then reconnect it after the LED goes out.
Smart Charger 4A, 36V, single
Parts Description
A. AC socket
B. Charger
C. Button
D. LED
E. Charge socket
Diagram Description: A visual representation shows the charger connected to a battery. Label A indicates the AC socket, B the charger unit, C the button, D an LED, and E the charge socket. The AC power cord is depicted connecting to a wall outlet.
LED Description
A. LED
B. Button
Diagram Description: A diagram of the charger unit highlights the LED indicators. Label A points to the primary LED, and B points to a button.
| LED | Color | Behavior | Status |
|---|---|---|---|
| A | RED > GREEN >RED | Sequence | Power on self test |
| A | RED | On | No battery connected |
| A | GREEN | Blink (0.5 sec interval) | Charging active |
| A | GREEN | On | Charging completed |
| A | GREEN | Blink (1.0 sec interval) | Battery charging over temperature protection |
| A | YELLOW | Push button B | Activate storage charge (60%) mode |
| A | RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Voltage Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Current Protection) |
| A | RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(0.5s)>RED(0.5s)>OFF(1.5s) | Sequence | Charging issue (Over Temperature Protection) |
| A | RED > GREEN >OFF | Sequence | Charging issue (Short Circuit Protection) |
If there is a charging issue, please check the charging circuit, and disconnect the AC source of the charger, and then reconnect it after the LED goes out.
Fast Charger 3A / 4A
Parts Description
A. AC socket
B. Charger
C. LED
D. Charge socket
Diagram Description: A visual representation shows the charger unit with its AC power cord and charge cable. Label A indicates the AC socket, B the charger unit, C the LED indicator, and D the charge socket.
LED Description
A. LED
Diagram Description: A diagram of the charger unit highlights a single LED indicator. Label A points to this LED.
| LED | Color | Behavior | Status |
|---|---|---|---|
| A | RED | On | Charging active |
| A | RED | Blink | Charging issue |
| A | GREEN | On | No battery / Battery full |
Charging
CAUTION: ⚠️
- Always take care to align all connectors properly before connecting.
- Charge the EnergyPak battery at room temperature (±20°C/68°F).
- Charging below 0°C or above 40°C (32°F~104 °F) can lead to insufficient charging and can have a negative impact on the battery life cycle.
- Make sure the bike is steady and standing firmly when charging the EnergyPak on the bike.
- Do not sit on the bike, move the bike or rotate the cranks while the charger is connected to the bike.
With the EnergyPak attached to the bike.
Start charging:
- Connect the charger to the charge port of the EnergyPak.
- Connect the charger to an AC outlet.
- The charging process starts.
Diagram Description: An illustration shows a bicycle with the EnergyPak battery installed. The charger is connected to the battery's charge port and plugged into a standard AC wall outlet.
Stop charging:
- Disconnect the charger from the AC outlet.
- Disconnect the charger from the EnergyPak.
With the EnergyPak removed from the bike.
Start charging:
- Remove the EnergyPak from the bike.
- Connect the charger to the charge port of the EnergyPak.
- Connect the charger to an AC outlet.
- The charging process starts.
Diagram Description: An illustration shows the EnergyPak battery unit detached from the bicycle. The charger is connected to the battery's charge port and plugged into a standard AC wall outlet.
Stop charging:
- Disconnect the charger from the AC outlet.
- Disconnect the charger from the EnergyPak.
- Place the EnergyPak back into the bike.
Information and Notices
INFO: ℹ️
- The LED(s) on the charger show the process status.
- The LED indicator on the EnergyPak shows current energy level.
- Charging can be stopped/interrupted at any time.
NOTICE: ❗ Disconnect the charger from the EnergyPak and AC outlet when the EnergyPak is fully charged.
Distributor and Manufacturer Information
Importer (進口商):
Giant Manufacturing Co., Ltd. (巨大機械工業股份有限公司)
40763 Taichung City, Xitun District, Dongda Road Section 1, No. 999
Tel: 04-23112357
Distributors:
GIANT EUROPE B.V.
Pascallaan 66 8218 NJ Lelystad
GIANT UK LTD.
Charnwood Edge, Syston Road, Cossington, LE7 4UZ, UK
Manufacturer:
QQE Technology Co., Ltd.
3F., No. 541, Zhongzheng Rd., Xindian Dist., New Taipei City 231, Taiwan (R.O.C.)
