There is a new Agriculture drone lipo battery: Tattu Plus2.0 18000mAh 6S1P 22.2V 15C Smart Lipo Battery with AS150+XT150 plug;
Specifications:
Minimum Capacity: 18000mAh
Configuration: 6S1P / 22.2V / 6Cell
Discharge Rate: 15C
Max Burst discharge Rate: 30C
Net Weight(±20g): 2270g
Dimensions: 205.5mm Length x 94.2mm Width x 79.5mm Height
Discharge Plug: AS150+XT150 plug
Charge Plug: XT90
If your drone fit in this size, you can consider check it out.
Links: http://www.genstattu.com/ta-plus2-0-15c-18000-6s1p.html
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