Kastar Rechargeable Shaver Battery Pack AA 2.4V 2000mAh Fits Most Norelco, Remington Shaver Models and Others (deatil Compatible Models Please Search The Below Description)

Shaver runs like new with the new batteries.

Perfect match for my old Norelco razor. Not an easy installation if you don’t completely suck out the old solder where the battery tabs go through the circuit board as the tabs are very thin/ bend easy. Fun to do the repair anyways. Make sure you have a solder sucking tool!!!

I ordered in April '23 and received the Kastar Rechargeable Shaver Battery Pack AA 2.4V 2000mAh for my Norelco 4845XL electric razor. I know, I know, it is an old razor, but it still works just fine and all it needed another set of rechargeable batteries to continue its life a little longer. Of course, you have to unsolder the old batteries from the printed circuit board, then resolder these new batteries in, but if you have a pencil type soldering iron and a little solder, it isn't difficult at all. The batteries already come with tabs that fit thru the circuit board for soldering (make sure the tabs are clean and bright [steel wool] before trying to solder)! Taking the razor apart (finding all the hidden screws), soldering, and reassembling was accomplished in less than 30 minutes at home. Now, once these were installed the red light on my razor stayed on almost constantly, normally meaning the batteries needed charging! I charged these new batteries fully until the green light came on, but after a short use time, the red light returned. I charged the batteries several times, but I finally just ran the razor until it wouldn't run any longer (discharging fully both batteries) then charged the batteries fully, and the charged/charge needed lights now work correctly. The batteries come with a charge on them which, apparently, fools the circuitry once installed. Now, the lights (green and red) function correctly and the battery powers my razor for a couple of weeks before needing to be recharged! I am pleased with the batteries and the power they provide to this razor! I'll just have to wait to see how long the life of these batteries are!

The water pik cordless version is real handy when I am travelling, but it was not holding a charge anymore. It was a little tricky to open the unit and get at the batteries inside, but basically required a little bit of manipulation after opening the screws. To replace the batteries, you do need to be handy with a soldering iron to remove the existing batteries and connect in the new ones; these batteries come with tabs (but not pigtails) so you cannot connect them by just twisting wires together. Other than that, it was pretty straightforward.

Very well constructed

Simple repair/maintenance.

These batteries are Ni-MH batteries that won't work with my vintage Norelco shaver (The picture shows that they are NI-MH batteries, so partially my error not looking closely enough to the picture). In the product description, it says these can replace 1.2 volt AA NiCD batteries 1000mAh or less. This is wrong since my Norelco shaver was designed for NiCD batteries , and will not charge NI-MH properly.For the price, it wasn't worth my effort to complain to the Seller about this. This was the first time I tried non Panasonic NiCD batterie for my shaver. I have gotten 4 to 5 years of life out of genuine Panasonic NiCD batteries (my shaver is 25 years old) , so it was stupid of me to try some "cheaper" brand.

After ten years of use, I replaced the older NimH rechargeable batteries with a fresh set, that had more amps. The tabs made it easy to install in my Waterpic water flosser. After several weeks of use, I believe this set of batteries will last longer between charges and will last another ten years.