There's a major contrast in to what extent rechargeable batteries last. In our tests we found the best went on for over 184 minutes – that is around six and a half long stretches of brushing twice per day for two minutes previously you'd have to top up the power. Be that as it may, others won't keep going as long – we found the slightest capable brush required energizing after only 16 brushes. Before you purchase your electric toothbrush it merits considering how regularly you're probably going to charge it. In the event that you intend to keep the charger promptly to hand and the battery always beat up then it's less vital to pick a model with an intense battery. In any case, on the off chance that you want to keep the charger stashed, or you need to bring your brush with you on long outings without the charger, search for a toothbrush with an enduring battery.