How do you open a PB 150 battery?

[Quadraman]

Does anyone know? Are there screws under the labels that hold the battery together or are they glued/fused together in some way?? I want to replace the cells in mine but I can't figure how to crack it open without destroying it at the same time.

 

[tomlee59]

No screws in the original (some third party ones, like some BTIs did use screws). The case halves are ultrasonically welded together. No clean way to separate them. I use an Xacto knife and CAREFULLY work my way around the case.

 

[Quadraman]

No screws in the original (some third party ones, like some BTIs did use screws). The case halves are ultrasonically welded together. No clean way to separate them. I use an Xacto knife and CAREFULLY work my way around the case.

How do you reseal it??

 

[Patrickool93]

Glue...

 

[tomlee59]

In addition to glue, there are a couple of other options, depending on what you prefer. One is to use double-faced tape to hold the case halves to the batteries.

Another is to take a soldering iron whose tip you don't care about and just melt the case halves together. Do this in a well-ventilated area; the fumes can't be good for you.

I'm too lazy to do any of these things any more. I just leave the halves unglued, and shove the whole thing into the 'book and leave it alone.

 

[wally]

...Another is to take a soldering iron whose tip you don't care about and just melt the case halves together. Do this in a well-ventilated area; the fumes can't be good for you...

tomlee59 is not kidding. I've been working on refining a plastic welding technique for repair of rigid and flexible plastics using a dialed down soldering iron set just above melting point. Great results, but it renders the soldering tip unsuitable for soldering by poisoning the plating, very difficult to re-tin, and will not stay tinned. Also, at a somewhat higher temperature achieved in drilling plastics too quickly, corrosive, smoky fumes are given off that rust a drill chuck overnight. Can't be good for your insides! [] ]'>