Battery life is only marginal. I find I must charge the unit every other day when using the periodontal tip along with two reservoirs of water daily.
I would recommend this to a friend!
Response from waterpik.comBy WaterPik, Product Support, March 27, 2020
We are sorry to hear you are not completely satisfied with the unit. This model does not come with an indicator light. We recommend charging the unit for 8-10 hours after every 6-8 reservoirs of water.
I absolutely love my Waterpix. The best feature is the extra large reservoir! I get a thorough cleaning with one full tank. The pressure is amazing. I am so glad I made this purchase!
Demande un peu de pratique au début. C'est un pur bonheur par la suite. Sensation de fraîcheur (j'ajoute quelques gouttes de rince-bouche) et impression de sortir de chez le dentiste. Très heureuse de mon investissement.