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  1. J

    li-ion 18650 charger AND capacity tester

    thank you. the opus bt 3400 is the one to get. the bt3100 is last years model and was prone to overheating. thanks, just bought one. can't wait to throw away some crap li-ion batts.
  2. J

    testing the ma power usage of flashlight bulbs

    can anyone tell me how to test a flashlight led drop in so i know how many ma drain its pulling? i wanna do a shootout of some common led drop ins but not sure where to start.
  3. J

    li-ion 18650 charger AND capacity tester

    I've been googling and searching the forums and don't have a hard answer yet. is there a charger like my opus bt-c2000 that can charge and test li-ion 18650's, 10440's etc etc. chargers that can test the capacity of ni-mh and ni-cad have been around for a while and there's even competition. i'd...
  4. J

    Need a charger that charges both 18650 and AA NiMH cells

    sorry but why can't you have one charger for li-ion, and one for ni-mh?
  5. J

    Battery charger to test D cell capacity

    http://www.amazon.com/dp/B00JL3XL2G/?tag=cpf0b6-20 what do you guys think of this one? seems ready to take care of my d cells right off the bat.
  6. J

    Battery charger to test D cell capacity

    so is there a aa charger i can use that doesn't mind going up to the 12k mah that d cells require that you guys like that i should pickup? what do you guys recommend?
  7. J

    Cheap EBL Charger for my D cells

    I need more charging capacity for my d cells plain and simple. I found this ebl fast charger on ebay for $15.99, the other cheaper ones charged at 150mah, this charges 1.2v at 1amp. good enough for me. however, i thought battery chargers had to charge at 1.5v, always higher than what they were...
  8. J

    Best D Cell Rechargeable Batteries

    wow thanks for all the great replies. i didn't know the tenergy were rated at a higher discharge rate than the maha lsd. however, the reviews keep coming back to me though. amazon reviewers consistently rate maha as lower fail rate. that many people can't be wrong. but twice the price? come on...
  9. J

    Best D Cell Rechargeable Batteries

    What do you guys think of EBL? According to amazon reviews they're almost or as good as maha. hmmm, but at the price of tenergy (half the maha)
  10. J

    Battery charger to test D cell capacity

    I have some old D cell batteries and I want to test their capacity to see what i should keep, what i should throw away, and what i should relinquish to emergency light (low drain) only. What battery chargers can tell me how many mah's my D cells have? I can't find anything.
  11. J

    Best D Cell Rechargeable Batteries

    obviously they have to stand up to a nice high drain whatever they are. usually 4 d's pushing 3 amps on an led, but i have one that will push 8-10 amps if the batteries will hold. Update: According to numerous Amazon reviews, Maha 9500 LSD are the best, with Maha Powerex 11000 being second...
  12. J

    Best D Cell Rechargeable Batteries

    Ok i've been looking for a good set of reviews on D cell batteries and found nothing remotely current. all battery junction has is tenergy, but i don't know if they're the best one for my money. i have to buy 16 or 20 D cell batteries. I don't want to emphasize price too much, i usually go for...
  13. J

    looking for best d cell

    most of the lights i would put my next batch of batteries in are ridiculously high drain. anyone have ideas of what would work best?
  14. J

    looking for best d cell

    where can i find a test of them? has anyone done a comparision? dont lsd cells usually last longer as they are build more robust?
  15. J

    looking for best d cell

    i wanna take advantage of battery junctions sale and am up in the air between the tenergy 10000mah and the titanium 12000. they're both about 6-7 bucks. but has anyone tried the accuevolution 10000 for $10 each?
  16. J

    eneloops on ebay II

    i have no idea why our original thread was closed when it was so popular and heavily visited and commented on but here goes. . . i got a deal for 5 packs of 4 eneloops from this seller. [eBay link removed - DM51] do you think this is a good deal compared to what i could get at costco, and...
  17. J

    Taking a laptop battery apart - can I use these?

    im guessing you took apart the laptop battery since it was no good anymore. dead batteries just get thrown away, they dont work any better individually. i admire the diy spirit, as if it was 18650s you could have rebuilt it your self with some booty from dx :)
  18. J

    eneloops on ebay

    or battery junction. im getting an r5 aaa at the same time. first im going to try to borrow a costco card and get that 10 for $13 sale (if its even still on) seems silly to drive 20 min to get a deal though. i wish there was a good source for a deal on these but everyone is charging retail...
  19. J

    eneloops on ebay

    i found some eneloops on ebay and was wondering if they are genuine. i just know someone is making cheap batteries and making their own eneloop labels. tell me what you guys think. http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&item=130344224228&ssPageName=ADME:X:RTQ:US:1123
  20. J

    determining amp draw

    take off the tailcap and head of light you want to test. using a multimeter, touch the negative end of meter to back of last battery, and positive end of meter to positve side of led. this will complete the circuit and turn the light on, allowing you to see the amp pull. i think meter goes on...

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