Zesty Max Energy Boost

 is an item the player can buy in the Bloons TD Battles Store. It can be purchased for 50. It increases the player's maximum battle energy by 10. It can only be bought 10 times, meaning that it would add on 100 to the maximum energy if you bought all that you could. This is a total of 150 counting the default.

Trivia

 * This is the only item in the Bloons TD Battles Store that can be purchased with Medallions.
 * This item also replenishes 10 as well as increasing the max amount by 10
 * This is not available in Bloons TD Battles Mobile, only the Flash version.