19-10-2023, 03:59 PM
In the time of lipo shortage, I tried a new brand from PhaserFpv:
GNB GAONENG 650mAh 2S HV 7.6V 120C XT30 LiPo Battery FPV Drone Racing Light Weight LiHV High Voltage
I have been using these lipos to power several 80 cm span 3D planes for some time, and I have assumed being 2S lipos that they should be charged to 4.2 v per cell, total 8.4 volts. I think they perform well.
I today noticed they have a nominal voltage of 7.6v! Until now I have never seen a lipo with a "nominal voltage of 7.6v".
I posted a question on RCG:
On the website it seems all the Gaoneng 2S batteries have a nominal voltage of 7.6v. There is no advice on what voltage they should be charged to. I would appreciate if anyone can explain this. Can they be charged like all other 2S lipos are charged?
Fortunately I received a good reply. The above battery is not called a lipo, its a LiHV, which can be charged to either 4.2v per cell or 4.3 v per cell. It looks the same as a normal 2S lipo, and it performs well.
Oscar Liang provides useful details on LiHV.
https://oscarliang.com/lihv-lipo-drone-battery-hvli/
I plan to check my chargers whether they accept LiHV batteries, or whether they can accept a charge to 4.3v per cell.
GNB GAONENG 650mAh 2S HV 7.6V 120C XT30 LiPo Battery FPV Drone Racing Light Weight LiHV High Voltage
I have been using these lipos to power several 80 cm span 3D planes for some time, and I have assumed being 2S lipos that they should be charged to 4.2 v per cell, total 8.4 volts. I think they perform well.
I today noticed they have a nominal voltage of 7.6v! Until now I have never seen a lipo with a "nominal voltage of 7.6v".
I posted a question on RCG:
On the website it seems all the Gaoneng 2S batteries have a nominal voltage of 7.6v. There is no advice on what voltage they should be charged to. I would appreciate if anyone can explain this. Can they be charged like all other 2S lipos are charged?
Fortunately I received a good reply. The above battery is not called a lipo, its a LiHV, which can be charged to either 4.2v per cell or 4.3 v per cell. It looks the same as a normal 2S lipo, and it performs well.
Oscar Liang provides useful details on LiHV.
https://oscarliang.com/lihv-lipo-drone-battery-hvli/
I plan to check my chargers whether they accept LiHV batteries, or whether they can accept a charge to 4.3v per cell.