








Spare Hot-Swappable Battery Pair for E-GO
The Hot-Swappable Battery system is designed to provide the FIFISH E-GO with limitless operational endurance. Utilizing advanced circuit technology, these dual battery modules allow for seamless replacement without powering down or restarting the ROV. This ensures your underwater missions remain uninterrupted, providing a sustainable power solution for intensive, long-duration professional tasks.
Compatible ROV Models
E-GO
- Hot-Swappable Power: Replace batteries without shutting down the system to keep operations moving.
- 69.12Wh Per Battery: Designed for easier transport and field deployment; always check current airline regulations before travel.
- Fast Charging: Charges to 90% in about 1 hour to reduce turnaround time.
- Flexible Runtime: Supports 1-4 hours of operation per full charge, depending on usage conditions.
- Dual-Battery Design: Supports smoother continuous operation during longer underwater missions.

Take a Close Look
Compatible ModelFIFISH E-GO
SpecificationsQuantity: 2 Modules
Battery Capacity: 69.12 Wh per Module
Endurance: 1 – 4 Hours per Full Charge
Charging Time: 1-hour Fast Charge (to 90% Capacity)
Battery Type: Lithium-ion (Li-ion)
Single Battery Weight: 0.65 kg (1.43 lbs)
Single Battery Dimensions: 21.6 × 6.0 × 4.3 cm (8.5 × 2.4 × 1.7 in)
In the Box2 × Hot-Swappable Battery
Note1. Battery performance may vary based on operating conditions.
2. Please check your airline’s latest lithium battery policy before travel.
Frequently Asked Questions
Have questions about our underwater ROVs or your order? We’re here to help!

Can I take the FIFISH E-GO batteries on a plane?
Yes, in most cases. Each battery module has a capacity of 69.12 Wh, which is below the 100 Wh limit typically set by international aviation authorities for carry-on luggage.
Important: We strongly recommend contacting your airline prior to your flight to confirm their latest policies and specific requirements for carrying lithium-ion batteries.
How long does it take to charge the E-GO batteries?
It can reach 90% capacity in approximately 1 hour.
Note: Actual charging speed may vary depending on environmental conditions and power source stability.
What are the available methods for charging the E-GO batteries?
There are two primary ways to charge your batteries, offering flexibility for your workflow:
On-Device Charging: Leave the batteries installed in the E-GO ROV and connect the charger directly to the ROV’s charging port.
External Charging: Remove the batteries from the E-GO and use the Q-Energy Station to charge one or two battery modules simultaneously.
For a visual walkthrough of these charging methods, please refer to the E-GO First Use Guide.
