This is a great choice for the Emax Tinyhawk S

All Tattu LiPos are packed with vibration-proof & fire-proof material and our luxury battery box ensuring you get your battery in perfect condition. An automatic procedure & Computer system battery cell matching process ensures the batteries stability and quality. Different from the original Gens Ace series, TATTU is specialized for the UAV & UAS market, with their industrial quality (since Gens Ace is based on the Hobby area), their slogan "less is more", "more" means more flight time, more enjoyment, and more satisfaction , and "less" means less weight, simple design. Tattu always develops their products according to these 2 directions giving you a high quality battery.
Features:

Remarkable stacking technology enables single cell capacities of 300mAh.
High discharge performance and high energy density.
Superior Japan and Korea Lithium Polymer raw materials.
High discharge C-rate: 75C

Specification:

Capacity(mAh): 300mAh
Voltage(V): 7.6
Discharge Rate (C): 75C
Max Burst discharge Rate (C): 150
Configuration : 2S1P
Net Weight(±20g) : 16
Length(±5mm): 45
Width(±2mm) : 16
Height(±2mm): 12
Connector Type: JST-PHR

Tattu 300mAh 7.6V 75C 2S1P Lipo Battery Pack with JST-PHR Plug