Over on our sister website we have published a new guide to replacing the battery inside the Waterpik WP-450 water flosser and other similar Waterpik models. You can read the full Waterpik WP-450 battery replacement guide online now.
We are also stocking the new batteries here in our secure online shop so buy your replacement Waterpik flosser battery now!
My battery and charging problems were solved by spraying the plug and pins with contact spray. Corrosion completely prevents the waterpik from charging I highly recommend to try this first!
Help my water pick is about 2 years old and the part that my batteries go in the little coils broke off (2) of them can I replace e the bottom where the batteries go or should I buy another one? I am on a limited income! Thank you Janice Wertz
What is the model number marked on your Waterpik?
HOW TO REPLACE THE BATTERY IN MY WP871W
Hi Rick, Your WP-871 toothbrush and the similar WP-860, WP-861, WP-862, WP-872, WP-881, WP-882 toothbrushes from Waterpik will open up in the same way. The older toothbrushes from Waterpik had a groove across the bottom of the handle which you could use a coin or large screwdriver to undo an eighth of a turn. Does your brush have this groove?
How do I replace the battery in a Waterpik SF-01?
For the Waterpik SF-01 and SF-02 toothbrushes, according to the photos linked below there are two triangular catches protruding from the sides internally, near the bottom of the handle:
SF-01 Internal Photos
SF-02 Internal Photos
Looking at the bottom of the brush there are two holes and you might be able to get a tool in there to release the two catches one at a time:
SF-01 Brush Bottom
SF-02 Brush Bottom
Once you get it open you can buy the replacement battery from our secure online shop here.
Let us know how you get on!
I have the Waterpik toothbrush model no SF-01W. My battery is dead . Can I replace it? Is the battery in the hand held toothbrush part or the base?
Yes the battery in the SF-01W toothbrush can be replaced. It is inside the toothbrush handle. The replacement batteries are available from us here – Waterpik SF-01 W toothbrush battery
My water pick model#862C only works when I leave it pluged in over night. How do I change the battery and where do I get a battery for this model.
Are you referrring to the rechargeable toothbrush that comes with the Waterpik WP-862 flosser/toothbrush combo set? We have replacement NiMH batteries for these. Remove the screw and base cap from the toothbrush. Then release the two internal catched while sliding the innards out from the top out of the bottom of the handle casing. You can then desolder the old battery and solder in the new one, which is likely to be one of these Waterpik toothbrush batteries.
Hi, how to replace batteries in Waterpik Wp-01. Not taking a charge
I can’t find any reference to that model. You can email us photos of the flosser and the model number label if you like.