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.
Compare Batteries
| Battery | EnergyPak 800 | EnergyPak 625 | EnergyPak 560 | EnergyPak 500 | EnergyPak 430 | EnergyPak 375 | EnergyPak Plus 280 | EnergyPak Plus 280 |
|---|---|---|---|---|---|---|---|---|
| Nominal Energy (Wh) | 811 | 621 | 558 | 500 | 429 | 375 | 200 | 280 |
| Capacity (mAh) | 22540 | 17250 | 11930 | 10350 | 11930 | 13800 | 5560 | 6000 |
| Weight | 4.1 | 3.9 | 2.7 | 2.8 | 2.3 | 2.4 | 1.1 | 1.5 |
| Total life cycle | 2300 | 2300 | 2300 | 2300 | 2300 | 2300 | 2300 | 2300 |
| Waterproof level | IPX6 | IPX6 | IPX6 | IPX6 | IPX6 | IPX6 | IPX6 | IPX6 |
| Type | Integrated | Integrated | Integrated | Carrier | Intube | Carrier | 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.