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  1. BatteryCharger

    F size lithium ion?

    I would love it if somebody made a 2D size lithium ion cell, around 10Ah/3.7V for a Maglite, but I don't think such a thing exists. (right?!) The next best thing should be an "F" (long D) cell. Batteryspace sells LiFe "F" cells, but they're only 4.5Ah. Does anybody sell regular lithium ion "F"...
  2. BatteryCharger

    Old timer with newbie Mag questions...

    I feel the need to mod a 2D Mag up to today's standards. It's been a long time since I kept up on any of this stuff, and now I'm totally confused on what parts I'll need. I *think* I want to use a P7 emitter at about 12 watts. I want to power it with 2 D size (unprotected) lithium ions. I'll be...
  3. BatteryCharger

    HID lumen maintainence?

    The original 35w bulb in my X990 has enough hours on it to kill 3 NiMh packs. (at roughly an hour per battery, 300 charges till death, that's probably around 900 or so hours on the bulb) It still works, but I'm wondering what the lumen maintainence is like in bulbs like these? I understand with...
  4. BatteryCharger

    NiMh AA self discharge comparison

    I was just doing this test for myself but I thought you guys would be interested in the results. I have several different brands of new NiMh AA batteries that I charged 30 days ago. First they got 5 cycles to break them in. Now I am using my BC700 to test their capacity @ 350ma. They have been...
  5. BatteryCharger

    Cop in a handicapped parking space!?

    I just stopped at the grocery store on my way home, about 12:30 AM. I was quite annoyed to find a police car parked in one of the marked disabled parking spaces. I saw the cop in the store, he wasn't on any "official business", he was getting a snack, and appeared to be "on duty" given the...
  6. BatteryCharger

    Testing primary battery capacity with BC-700?

    I'd like to do some testing on a few different AA alkaline/lithium batteries. The only test machine I have is a BC-700. Dare I even ask, could I put an alkaline cell in there on discharge mode? Obviously I'd have to watch it like a hawk and pull it before it starts recharging...
  7. BatteryCharger

    Does anybody offer a 35/55 watt ballast?

    I recently had a minor stroke when I realized how cheap HID ballasts/bulbs have become. I've got at least 4 cars to convert, a boat, some spotlights...I could go on. :D As I understand it, most of the 50/55 watt ballasts simply overdrive a 35w bulb, is this correct? If so, are there any...
  8. BatteryCharger

    NiMh trickle charging?

    I've decided to rebuild several power tool battery packs I have and my X990 battery packs with new higher capacity NiMh cells. I am using a better "hobby" charger to charge the packs rather than the "battery cookers" that come with power tools. Of course, NiMh's arch nemesis is self discharge...
  9. BatteryCharger

    Where to find X990 parts?!

    I have a $500 X990 going to waste in my garage because it has a broken lens. Acro, the US distributor, in their infinate stupidity, refuses to sell me a new one unless I send them the entire unit so THEY can replace it for me. :rolleyes: That's $25 + shipping both ways + god knows how much for...
  10. BatteryCharger

    X-rays?

    This is just something I've always wondered about. Today I had to get a chest X-ray at the doctor. I vaguely understand the theory of how X-rays work, but the machine itself...I have no idea. Usually when I see an X-ray machine there is some really large electrical boxes in the room as if it...
  11. BatteryCharger

    The "better business bureau" of landlords?

    As I've posted before I lease a small commercial building for my business. Let's just say negotiations on the new lease broke down today, after I called the landlord a stupid f****** c****. :sssh: (she had it coming) Anyway, I've decided to move, not because I don't like the building or...
  12. BatteryCharger

    Replacing a toilet?

    I'm negotiating with the landlord at the industrial shop I lease, the toilet needs to be fixed, but, even if it was fixed, it's still garbage. It gets plugged if you just give it a dirty look. :shakehead It's a low flow toilet, and something is wrong, making the flow EVEN LOWER. It's also not...
  13. BatteryCharger

    Which C cells for battery pack rebuild?

    I have three expired battery packs for my X990. At around $120 each for new ones, I'll be fixing the old ones. ;) The original packs are 10x 4500mah C cells, which give a 70 minute run time. (slightly less than 1C discharge) I would like to use higher capacity cells, on the other hand, I don't...
  14. BatteryCharger

    What the heck was that?!

    I was recently looking at a peice of property for sale with my parents. Several acres with an old, old, old house and barn boarded up and falling down. I'm guessing the whole thing was built at least 100 years ago. It's been left abandoned for many many years. Anyway, it was a beautiful peice...
  15. BatteryCharger

    Why did power tools skip over NiMh batteries?

    I have quite a few older power tools with aging NiCd batteries - batteries that were crap even when they were new. I know that many tool manufacturers are now using lithium instead....but how come they never started using NiMh when it was the king? Or to put the question a different way - I...
  16. BatteryCharger

    Extreme self discharge in new NiMh cells?!

    As I've pointed out before I have quite a pile of NiMh AA batteries. Many of them are Duaracell 2650s. I'm planning on building them into packs, so I've been cycling each battery approximately 3 times, and recording the capacity from my BC700 once they hit at least 2.4ah. After that I put them...
  17. BatteryCharger

    Changing mailbox location?

    As I previously mentioned I lease a small commercial building for my business. The mailbox is one of the neighborhood types with like 15 boxes stuck together out by the sidewalk. Problem is it's quite a long distance from my building, and, given the industrial neighborhood, I don't really feel...
  18. BatteryCharger

    What is the highest capacity NiMh AA?

    I'm just curious here, I know we've kind of hit a wall in terms of capacity for NiMh, and, some have actually started having a lower capacity. Who makes the absolute highest capacity (in real life, not on the label) NiMh AA? I have a small handfull of Duracell 2650's that measure reliably at...
  19. BatteryCharger

    Getting a new road on the map?

    I lease a small commercial building for my business. Customers are basically by invitation only, and I chose this place because it's right off a major highway at a new stoplight...easy to find. Problem is, people like to get their own directions from mapquest, google maps, GPS, whatever. This...
  20. BatteryCharger

    Charging a battery with a battery?

    Ok, not quite about flashlights, but... I happen to have a bunch of 6v, 4.5ah lead calcium SLA batteries with not much to do. (the type used for backup in exit signs and such) As I understand it, these are the "LSD" version of lead acid batteries. I was thinking of making a six pack (18v, 9ah)...

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