It's near impossible unless you are on a team that can push really hard and actually focus on attacking the battery. The battery needed a buff but i think they buffed it way too much but in return they actually made the zombot weaker. If your team can actually destory the battery at least twice then it's possible to win but with how tough the battery is that's usually unlikely but do-able when going up against a bad/lesser skilled zombie team
It was too easy at first but now it seems very difficult to take the battery down and cause enough damage per battery taken out to win as the plants right now. It is possible but in MP matches I only see it when the zombie team defends poorly and against bots it's not impossible but very close.
You can only win the objective if you have a lot of Pea Gatlings, Corns and Torchwoods suiciding the battery and the fuses over and over. The battery as well as the fuses are immune to splash damage, which makes Citron lesss effective (for those who don't know, Cotron deals splash damage, altough the radius has been heavily decreased since launch), Rose and Cactus don't have enough DPS, Chomper is just as useless on this point as he has always been, and the Sunflower dies to fast.
