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    MIT says future rechargeable batteries could be safer and last much longer

    Interesting read here: https://news.mit.edu/2015/solid-state-rechargeable-batteries-safer-longer-lasting-0817
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    problems with Condor 5000 charger

    I have a really old Condor 5000 charger for NiCd batteries. The charger has four slots that are divided into two groups of two, and there is an indicator LED for each group. The problem is that one of the LEDs no longer turns on. At first I thought the batteries were bad - after all, they are...
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    Supernova 300 LED lantern - anyone have experience with it?

    My father ordered one of these a few days ago. It hasn't arrived yet, but the reviews are mostly positive. Anyone here own one of these lanterns? If so, what are your experiences with it?
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    FordEx Group LED lights - anyone have experience with them?

    Thanks for the information. It seems the flashlights from 4Sevens or similar companies would still be much better performers, then.
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    FordEx Group LED lights - anyone have experience with them?

    There's a 300-lumen LED flashlight from the FordEx Group that's very popular on Amazon right now. Here's the link: http://www.amazon.com/dp/B006E0QAFY/?tag=cpf0b6-20 The specs are nice, but the price seems seems a little too good to be true. Does anyone here have any experience with these...
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    Quark Pro QP2A vs. QP2A-X maximum run times?

    I was looking at the Quark Pro QP2A and the Quark Pro QP2A-X from FourSevens, and one thing that caught my eye was the huge difference in maximum run time. Both of these lights use two AA batteries and have the same minimum output of 0.2 lumens, yet the maximum run time for the QP2A-X is only...
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    Steren digital multimeters: are they any good?

    Some of the digital multimeters from Steren have rather attractive prices and mostly positive reviews on Amazon. Does anyone know if they're actually any good?
  8. I

    looking to replace ThinkPad T42 battery

    Thanks for the feedback, everyone. Also, would this be a good choice? It has pretty positive reviews.
  9. I

    looking to replace ThinkPad T42 battery

    Yeah, I would be convinced that the more expensive cells are of higher quality. You get what you pay for, right?
  10. I

    looking to replace ThinkPad T42 battery

    Is anyone here familiar with laptop batteries? If so, I need your expertise: The battery for my ThinkPad T42 is very old, and a full charge holds only a little more than a quarter of its design capacity. However, Lenovo no longer sells this particular battery. Instead, replacements are offered...
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    Maha MH-C808M charger unsafe?

    A lot of people are saying that the Maha MH-C808M is the best universal charger available. However, at least two Amazon reviewers have reported that their units have caught fire. http://www.amazon.com/review/R19GRNG2ACW6RU/ref=cm_cr_pr_cmt?ie=UTF8&ASIN=B000E65DG6...
  12. I

    Scary Footage

    I'm getting the same error. Anyone know of a good NZ-based proxy? edit: never mind; didn't see the YouTube links.
  13. I

    exploding Li-ion batteries from Wicked Lasers?

    Has anyone seen this thread on LPF? Pretty scary stuff, if you ask me.
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    Actual dangers of un-protected Li-ion

    I have an unprotected li-ion cell, and it has not given me any trouble yet (emphasis on "yet").
  15. I

    The Life+Gear 360...the ultimate C cell light??

    I got two of those lights today. I've only played with one for a few minutes, but I can say that it's an awesome light.
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    What happened here? (hot AA batteries)

    Something scary happened to me a few years ago. I put three AA alkaline batteries in an electric shaver, and it would not turn on. When I checked the batteries, I noticed that they were very hot. I became worried and threw them out. When I put in another set of batteries, the shaver worked...
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    safe to put AA cells/C shells in a 360 Lumen flashlight?

    My family just got two Life+Gear 360 flashlights, which use three C cells. I don't have many C batteries at the moment, but I do have quite a few AA ones, as well as some C adapters that use AA batteries. Is it safe to use AA cells in these lights? I'm asking this because I've heard that it can...
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    replacing built-in batteries?

    I've noticed that many "rechargeable" flashlights use built-in batteries. However, there are two major disadvantages with built-in cells: 1. When the electricity runs out, you have no choice but wait for the battery to recharge. 2. The battery will eventually wear out, and the flashlight would...
  19. I

    Spyder III Pro Arctic -- Beam Analysis Only.

    The beam at the aperture looks a lot wider than the advertised 1.5 mm.
  20. I

    good carrying cases for individual lasers/flashlights?

    I've considered this product before. It would hold my LED lights with no problem, but it's a bit too short for my 204 mm "Spyder I Pro" laser. I could probably fit the laser into the larger Cigar Caddy 3400 if I remove the tail cap, but it would be a hassle if I had to remove and replace the cap...

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