When selecting the ideal Lipo battery for the GEPRC Tern-LR40, there are two primary considerations to keep in mind. First is the pursuit of the best flight performance, which involves choosing a battery that can maximize the quadcopter’s agility, speed, and responsiveness. This typically means looking for batteries with high discharge rates and appropriate voltage and capacity to match the Tern-LR40’s specifications.
The second consideration is finding a battery that offers a good balance between quality and cost-effectiveness. This involves selecting a battery that meets the basic requirements for a satisfactory flight experience without breaking the bank. Such batteries should still provide enough power and stability for standard flight tasks, even if they might not push the quadcopter to its absolute limits like the more performance-oriented options.
Based on these considerations, I will recommend a few batteries that stand out in terms of either maximizing flight performance or offering the best value for your money.
Best Performance lipo for Tern-LR40
Tattu 4S 650mAh 14.8V 95C

Brand: TATTU
Voltage: 14.8 Volts
Capacity: 650mAh
Discharge Rate: 95C
Connector: XT30 Plug
Size: 61×31×24mm
Weight: 78g
This particular battery stands out due to its unique blend of power and lightweight design, which aligns perfectly with the capabilities and requirements of the Tern-LR40.
The Tattu 4S battery, with its high 95C discharge rate, provides an exceptional ‘punch’. This is crucial for an FPV Quadcopter like the Tern-LR40, which is built for performance and agility. The 650mAh capacity, while seemingly modest, is more than sufficient for the power demands of this quadcopter, ensuring you get the most out of each flight without compromising on the flight time.
Weighing just 78 grams, this battery is a perfect match for the Tern-LR40’s lightweight design. Its size and weight ensure that the quadcopter remains agile and responsive, which is essential for FPV flying, especially when you’re capturing dynamic aerial footage. The XT30 plug connector ensures a secure and efficient power transfer, which is vital for maintaining consistent performance throughout the flight.
In conclusion, the Tattu 4S 650mAh 14.8V 95C Lipo battery is an excellent choice for the GEPRC Tern-LR40. Its combination of high discharge rate, appropriate capacity, and lightweight design enhances the Tern-LR40’s flight performance, making it ideal for both enthusiasts and professionals looking to capture stunning aerial footage without compromising on agility and flight time.
Tattu 4S 850mAh 14.8V 95C

Brand: TATTU
Voltage: 14.8 Volts
Capacity: 850mAh
Discharge Rate: 95C
Connector: XT30 Plug
Size: 61×31×31.5mm
Weight: 104g
This battery is a popular choice among pilots who are looking to extend their flight times without sacrificing performance, especially in competitive settings.
The increased capacity of 850mAh is a significant advantage for the Tattu 4S battery. It allows for longer flight durations, which is highly beneficial for pilots who want to spend more time in the air, whether for leisure flying or capturing extended aerial footage. This extended flight time does not come at the cost of performance; the 95C discharge rate ensures that the battery can deliver power rapidly when needed, maintaining the agility and responsiveness of the Tern-LR40.
At 104 grams, this battery is slightly heavier than its 650mAh counterpart, but it still aligns well with the Tern-LR40’s lightweight and efficient design. The quadcopter’s structure and components, including its high-grade motors and flight control system, can handle this additional weight without compromising on maneuverability.
One of the standout features of the Tattu 4S 850mAh battery is its voltage stability, especially during high-throttle bursts common in racing scenarios. This stability is crucial for the Tern-LR40, particularly when performing intricate aerial maneuvers or capturing high-speed footage. The stable voltage ensures consistent performance, reducing the risk of power drops during critical moments.
Its higher capacity, combined with a robust discharge rate and voltage stability, makes it a top choice for both leisure and competitive FPV flying. Whether you are capturing stunning aerial footage or competing in high-speed races, this battery ensures that the Tern-LR40 can perform at its best.
Best Value lipo for Tern-LR40
OVONIC 4s 650mAh 14.8V 80C

Brand: OVONIC
Voltage: 14.8 Volts
Capacity: 650mAh
Discharge Rate: 80C
Size: 58×30×21mm
Weight: 70g
OVONIC 4S 850mAh 14.8V 80C

Brand: OVONIC
Voltage: 14.8 Volts
Capacity: 850mAh
Discharge Rate: 80C
Size: 59×29×29mm
Weight: 99g
Both batteries from OVONIC stand out for their durability and consistent performance over time. They hold up well even after multiple charge cycles, a crucial factor for regular flyers. Their cost-effectiveness makes them an ideal choice for everyday use, and training, and for beginners who are looking for quality without breaking the bank.