FDK OEM NiMH Replacement Battery Compatible with Some Selected Braun Oral-b Professional Care Toothbrush, with Narrow tabs, (42L x 17 D mm, 2150 mAh)

I bought to repair a Braun Toothbrush. There are several different batteries depending on the model. One size does not fit all! Buying the battery with the solder tabs already welded is more expensive but will make installation much easier. I own a battery welder, but for a couple of dollars more it wasn't worth the time or effort! A YouTube search for your model will help in disassembly and identifying the correct battery. These are an exact fit sort of thing, close won't fit! Despite showing charged, my toothbrush seem to struggle, like 1/2 speed. This brought it back to like new. The videos will help, but it is easy to screw up and toast your big bucks toothbrush. You were warned ⚠️***************************************I neither received nor solicited recompense in any form for this review. Solicitations to change or "enhance" reviews are always reported to Amazon without exception. Free items or money are joyfully accepted, THEN IMMEDIATELY REPORTED TO AMAZON!! THANK YOU!!!! The observations are my own without any outside influence or input. Your experience may differ from my own! Do your own research and comparisons prior to purchasing, don't rely solely on my observations. I recommend purchasing only from Prime sellers as my experience with "marketplace" sellers has been mostly negative, often drop shipping from China to the USA so it has a USA postmark. That said, do your own research prior to purchasing any products from the Internet!?

This battery is perfect for the Braun Oral-B Triumph (make sure you have the right length battery!), with narrow and offset tabs that make installation very simple. There is no need to bend or reshape the tabs, they fit directly into the existing holes (after removing the old battery and cleaning up the pads). All that is required is to shorten them. The provided (and available online) instructions are very clear, with pictures that show how the process should go.Since installation a week ago the toothbrush shows 3/4 indicated charge after using it twice a day, I fully expect another three or four weeks (maybe?) before it needs to be charged again. Before replacing the battery the toothbrush would make it through one cycle (two minutes) then would be dead. Now it's back to what is was when it was new (at least).Note that replacing the battery requires a good soldering iron, desoldering tools (I used a solder-sucker to remove the old battery and solder wick to clean the battery pad), a T6 screwdriver, and a small wire cutter (to reduce the length of the battery tabs). A small hobby vice comes in very handy as well. Removing the plastic press-fit tip on the toothbrush requires a small screwdriver (or other thin blade), putting it back on requires some amount of pressure (I adjusted the jaws of my vice to fit the width of the tip and pushed). Some experience in this sort of work is very useful, it might be a bit overwhelming for someone that has never done small electronics repair. But if you have the tools, and the time, the results are well worth it.

Not worth the money. Takes more than 24 hours to charge. First time the charge lasted only 3 weeks. The second time it lasted only 2 weeks. I only use it once a day (I have another brush that I also use). It came with the positive side marked by a sharpie.I am assuming that it can’t be returned after already installed by soldering!

got the battery and one look, i knew something was wrong. the negative terminal/strip was tacked on the wrong side of the bottom. others complained that he leads were too long and needed to be shorten. i'm glad the leads were long otherwise i wouldn't have been able to bend the lead into position to solder. toothbrush worked right away, but battery was low. charged for several hours and it ran for a bout a minute and died. plugged back in and left it for the last 20hrs. hopefully it'll be enough to hold a charge. otherwise, i'll be back with an update! i would recommend this battery, at the moment. price a bit expensive, but other batteries had worse issues/reviews.

Most of the available replacement batteries for my electric toothbrush were shorter and lower capacity. This battery is the right size, and did not require any modification and spring adjustment. Even the tabs were the right size and required no trimming. You do need to be comfortable with soldering, but this replacement battery has brought new life to our electric toothbrush.

Those that said the got a bad battery that wouldn't hold a charge might have, but it's far more likely that they broke the extremely fine inductive charging coil wires where the connect to the circuit board. Further, there are small surface mount components soldered in close proximity to the battery's solder tabs that could be damaged if trying to use a soldering iron that's too large, or in the hards of someone that's inexperienced.The battery that I received worked perfectly. It was a little over priced, but Amazon makes it very easy to buy. Just remember thatvthis is not a plug and play opertion for the inexperienced.