Charge

Charge is an attack behavior characterized by performing an applied buff to itself or others. It is part of the damage types family. All attacks with Charge are guaranteed to be of Passive type. If not assigned with Targets Tower(s), an attack with Charge is considered a self-buff.

Charge is represented on Bloons Wiki as, the upgrade icon for Turbo Charge. Charge is not limited to attack speed, rather the premise of Charge is boosting towers by applying buffs, whether it be self-buffs or buffs to other towers. Buffs that are "applied" are given directly, or in other words requiring any direct action to add a buff to itself or others. Turbo Charge increases attack speed of itself for a limited time, Perma Charge to its damage, and all attacks with Transform Others have the damage type Charge. All Alch buffs are also considered Charge, even Permanent Brew, which is a "permanent" but applied buff. The distinguishing factor of Charge compared to Influence  is that Charge is applied, rather than both full-uptime and based on range. All of the current temporary hero buffs are also considered Charge too. Call To Arms and Homeland Defense, while its abilities are range-oriented buffs, are both considered Charge rather than Influence  due to their on-demand activations of the buffs, to which Lych can sap out.

The concept of "Charge" has been established fully with the release of Lych, a Boss Bloon who steals applied buffs originating from non-hero towers. This distinguishment of "Influence" compared to "Charge" is done to distinguish which buffs are considered sappable and which ones aren't.

All attacks require an upgrade to perform Charge.

List of towers and heroes with Charge
Only non-hero, non-power towers that can perform Charge are able to be sapped by Lych.

Towers

 * Super Monkey Fan Club and Plasma Monkey Fan Club abilities (also involves Transform Others )
 * Turbo Charge and Perma Charge abilities
 * Absolute Zero ability
 * Elite Defender's passive ability
 * Artillery Battery ability but not Pop and Awe ability
 * Emergency Unlock MK ability for Dartling Gunner
 * Acidic Mixture Dip's dip
 * Berserker Brew's brew
 * Stronger Stimulant's brew
 * Permanent Brew's permanent brew
 * Transforming Tonic and Total Transformation abilities (second-mentioned also involves Transform Others )
 * Smart Spikes start-of-round boost
 * Call To Arms ability and Homeland Defense ability
 * Overclock ability
 * Ultraboost ability and its permastacks

Heroes

 * Quincy's Rapid Shot ability
 * Gwendolin's Heat It Up effects
 * Striker Jones Artillery Command ability at any level, even pre-Level 20
 * Benjamin's Biohack ability
 * Ezili's Sacrificial Totem ability or the sub-tower itself
 * Pat Fusty's Rallying Roar
 * Adora's Long Arm of Light
 * Adora's Blood Sacrifice buffing effects
 * Admiral Brickell's Naval Tactics
 * Etienne's Perma-UCAV ability