XT60 is a type of plug. You will want to check if the plug matches on everything. To make sure, you have the 6s version of the Iflight green hornet v3. The 6s battery has an XT60, at least 75c ideally, 800mah - 1400mah is probably best. Possibly the best value batteries are CNHL Black or Ministar. Make sure your charger has an XT60 and can balance charge up to 6s. The most important things to know about the batteries (these are LiPo) is not to discharge below 3v per cell. You should fly the pack down 3.5v, or 3.4v if you want. They can explode if not balance charged. Using the max output of the battery damages it. Nearly anything damages these batteries. Storage at a voltage other than 3.8-3.85v, flying, not flying, charging especially at a higher than 1c rate. Temperatures damage LiPo batteries but I don't know if that is permanent. Impacts damage the battery, not to worry if it crashes a few times. If you really really try LiPo's can explode quite violently. You will most likely want a 450mah for the micro. The higher c rating the better 80c is decent and 100c might be the highest you can get.