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Reviews (12)
Aug 02, 2016
Lenovo x201 replacement battery - extended capacity
So far so good. I needed a replacement battery for a Lenovo x201 laptop given me by a friend when my wife's Dell went belly up. I couldn't find a Lenovo branded replacement at anywhere close to a reasonable price so I took a chance on this one. It fits properly, charged up properly with the internal charging circuitry in the x201 and so far it gives 5 to 6.5 hours of operation on a charge depending on what one is doing with the computer. WiFi and Bluetooth stuff takes more current and, of course, will shorten the operating time, but all-in-all, I consider it a very acceptable replacement battery. I'd definitely buy another one if/when needed.
May 28, 2017
Decent Crimper
Very precision jaws but it would be nice if they were marked for terminal / wire size as most of my other crimpers are. I wound up destroying a couple of terminals due to this. Jaw marking or even better a short instruction book or at least a sheet of paper with a picture indicating the acceptable wire size/terminal to be used in each slot should really be included. That's why I only gave it 4 stars instead of 5.
Oct 22, 2015
Has one problem.
1 of 1 found this helpful Rather than a battery, the manufacturer uses a super-capacitor to keep the memory alive. This capacitor does not do it's job well and the module loses the information you have programmed into it after a while, even with voltage applied to power the module. It was necessary for me to replace the capacitor with a 3 volt Lithium button cell and eliminate the capacitor charging circuit. This voids any warranty so I am not stating here just how to do that. If you are not an electronic technician or technically inclined, don't try this yourself.
I am using the module as a frequency standard by programming the time-pulse output to 10 million pulses per second which equates to a 10 MHz frequency output which is kept accurate by the atomic standards in the GPS satellites.