Tattu 16000mAh 8S1P 29.6V 95C FPV Lipo Battery Pack with XT90S Plug

It depends on how efficiently your aircraft carries the additional weight. More capacity does not always mean proportionally longer flight time. Compare expected energy consumption, takeoff weight, and the required landing reserve before choosing a larger pack.

Li-ion packs can be attractive for energy-efficient cruising, while high-discharge LiPo batteries are often better suited to aircraft with demanding acceleration or peak-current requirements. Compare usable energy, weight, voltage sag, and propulsion demands rather than capacity alone.

Only if the charger supports 8S LiPo balance charging and has sufficient power for your intended charging current. Check the charger's output limits and use the battery manufacturer's approved charging settings. Do not assume every FPV charger supports large 8S packs.