POWERFUL ENDURANCE
Power up your adventures with energy that lasts. EnergyPak batteries deliver reliable, flexible performance, letting you ride farther, explore longer, and experience every ride beyond expectations.
closeup of electric bike motor
Energypak
More charge
Energypak Series
Our battery range delivers versatile power solutions. Integrated for sleek daily rides, removable for convenience, and extendable for longer adventures to precisely match your riding ambitions.
graphic showing integrated battery on ebike
Integrated
Advanced battery cleanly housed in the frame, offering fast charging and precise management for superior efficiency.
graphic showing giant bicycle downtube with electric battery
IN-TUBE
Slim, Panasonic-engineered cell concealed in the down tube, packing 400Wh capacity to fuel ambitious journeys.
range extender shown on ebike
Range Extenders
Feather-light units are neatly secured via bottle cage bolts, providing 200Wh or 250Wh extra for extended trails and epic days.
carrier battery on electric bike
Carrier
Securely mounted on the rear carrier, this battery is easy to remove and carry. Charge on the bike or at home, keeping everyday use simple and flexible.
INTEGRATED 48V
Giant's 48V EnergyPak batteries run at a higher voltage, delivering the same energy while using less current. That means cooler temperatures, less energy loss, and support that stays consistent when you're pushing hard. The result is a ride that feels smooth and responsive from the first pedal stroke, with no drop-off in performance when the terrain gets tough. Whether you're out for a quick lap or a full day on the trail, the 48V EnergyPak range keeps delivering, mile after mile.
EnergyPak 840
ENERGYPAK 840
• Integrated into the downtube with advanced 22700B cells for more energy, less weight • Higher voltage, lower current: less energy loss, smoother support • BMS monitors cells for safe, efficient performance • Giant Smart Charging for stable, long-term reliability • Up to 2,300 charge cycles—4.6x the industry standard • Extendable to 1120Wh with EnergyPak Plus 280
EnergyPak 560
ENERGYPAK 560
• 48V integrated 560Wh battery—more power, less cell stress • Up to 2,300 charge cycles, industry-leading • Durable plastic casing, dual-density cover, 300g lighter • Highest safety and impact standards • Add EnergyPak Plus 280 for 840Wh total
| Battery | EnergyPak 840 | EnergyPak 560 |
|---|---|---|
| Typical Energy (Wh) | 842 | 558 |
| Capacity (mAh) | 18000 | 11930 |
| Weight (kg) | 3.7 | 2.7 |
| Total life cycle | 2300 | 2300 |
| Output | 48V | 48V |
| Waterproof level | IPX7 | IPX6 |
| Type | Integrated | Integrated |
INTEGRATED
Giant's EnergyPak Smart batteries are dependable, fast-charging, and durable enough to handle a wide range of daily usage. Cleanly integrated and built to last, you can count on them to keep up wherever the road or trail takes you. And if your charge drops below 5%, the system doesn't just power down—it works with the motor to automatically optimize support and stretch every last bit of energy as far as possible.
ENERGYPAK 800
ENERGYPAK 800
ENERGYPAK 750
ENERGYPAK 750
ENERGYPAK 650
ENERGYPAK 650
ENERGYPAK 500
ENERGYPAK 500
| Battery | EnergyPak 800 | EnergyPak 750 | EnergyPak 625 | EnergyPak 500 |
|---|---|---|---|---|
| Typical Energy (Wh) | 811 | 741 | 621 | 496 |
| Capacity (mAh) | 22540 | 20600 | 17250 | 13800 |
| Weight (kg) | 4.4 | 4.3 | 3.9 | 4.1 |
| Total life cycle | 2300 | 2300 | 2300 | 2300 |
| Output | 36V | 36V | 36V | 36V |
| Waterproof level | IPX6 | IPX6 | IPX6 | IPX6 |
| Type | Integrated | Integrated | Integrated | Integrated |
CARRIER
Giant's carrier batteries mount onto the rear rack for practical, everyday riding. They are protected, easy to access, and simple to charge on the bike or at home. Compact and lightweight, they also give you a place to strap on cargo, fitting neatly into daily life.
ENERGYPAK 500 CARRIER
ENERGYPAK 500
ENERGYPAK 375 CARRIER
ENERGYPAK 375 CARRIER
| Battery | EnergyPak 500 | EnergyPak 375 |
|---|---|---|
| Typical Energy (Wh) | 482 | 373 |
| Capacity (mAh) | 13800 | 10350 |
| Weight (kg) | 2.8 | 2.4 |
| Total life cycle | 2300 | 2300 |
| Output | 36V | 36V |
| Waterproof level | IPX6 | IPX6 |
| Type | Carrier | Carrier |
RANGE EXTENDERS
Giant's EnergyPak Plus range extenders give you the freedom to go farther. Compact and lightweight, they mount easily onto the frame using standard bottle cage bolts. So you can add capacity when your ride calls for it and easily remove for shorter trips.
ENERGYPAK 200 RANGE EXTENDER
ENERGYPAK 200
ENERGYPAK 250 RANGE EXTENDER
ENERGYPAK 250
ENERGYPAK 280 RANGE EXTENDER
ENERGYPAK 280
| Battery | EnergyPak 200 | EnergyPak 250 | EnergyPak 280 |
|---|---|---|---|
| Typical Energy (Wh) | 200 | 250 | 200 |
| Capacity (mAh) | 5560 | 6620 | 5940 |
| Weight (kg) | 1.1 | 1.8 | 1.5 |
| Total life cycle | 2300 | 2300 | 2300 |
| Output | 36V | 36V | 48V |
| Waterproof level | IPX6 | IPX6 | IPX6 |
| Type | Range Extender | Range Extender | Range Extender |
FREQUENTLY ASKED QUESTIONS
EnergyPak is the battery system used in Giant E-bikes. It stores the energy that powers the motor and is designed for efficiency, durability and seamless integration with the bike.
Most EnergyPak batteries are integrated into the downtube for a clean design and balanced ride feel, while some city E-bikes use externally mounted or rear carrier-mounted batteries for easier access and charging.
What range can I expect from my e-bike battery?
Range depends on factors such as terrain, rider weight, assist mode, battery capacity and riding conditions. Depending on the model and setup, many riders can expect approximately 60 to 180 km on a full charge.
Yes. Many models are compatible with an EnergyPak Plus range extender, which adds extra capacity for longer rides. Please check with your local Giant dealer to confirm frame compatibility and the correct model for your E-bike.
Charging time depends on battery size and charger type. Many EnergyPak batteries can reach around 80% charge in approximately 2 to 3 hours, while a full charge typically takes around 4 to 6 hours.
How long will the battery last over time?
EnergyPak batteries are designed to last for many charge cycles over several years while maintaining strong performance. Proper care, charging and storage can help extend battery life.
How safe is an EnergyPak battery?
EnergyPak batteries are built with multiple safety features, including protection against overcharging, overheating and short circuits. They are rigorously tested to meet Giant’s safety and durability standards.