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  1. chaosdsm

    4AAA - C cell & 3AA to D cell adapters & Eneloop Pro LSD charging?

    No, my real question was just as it says in the bold blue text in my original post... which would be best for the batteries. I'm not worried about the adapters. 1 D cell adapter holds 3 AA batteries.... therefore if I'm charging 24 batteries at the same time, I'm using 8 adapters ;) No...
  2. chaosdsm

    4AAA - C cell & 3AA to D cell adapters & Eneloop Pro LSD charging?

    I did a search, but the newest topic I saw was from 2012. I had some Eneloops out in my shop, but roof developed a leak in the past 6 months and they got pretty wet. I just got 8pcs 4P AAA to C cell adapters & 12pcs 3P AA to D cell adapters from Amazon to use in lights & radio's that use C or...
  3. chaosdsm

    Info on a 26650 battery please

    Seems to be, found this: Normal capacity 5000 mAh/0.5C Minimum capacity 4950 mAh/0.5C Normal voltage 3.6V Charging voltage 4.2 ±0.05 V Discharge ending voltage 2.75±0.05 V Standard charging current 0.5C(2500 mA) Standard discharge current 0.5C(2500 mA)...
  4. chaosdsm

    Info on a 26650 battery please

    Just got a Tattu U3S 365nm UV flashlight in the mail yesterday. Included with the flashlight was a 26650 battery in a plain black heatshrink with no writing on it. Curios to see what kind of capacity it had, I put it in my Opus charger and ran a discharge capacity test on it, and the Opus...
  5. chaosdsm

    I don't trust Orbtronic anymore, what else should I use?

    You mean this review: Not what they used to be The new 3600mAh cells I purchased don't even last as long in my headlamp as the 3400mAh Orbtronics cells I have that are several years old with 500+ charge cycles on them. (using the same light output mode). That is very disappointing. Would not...
  6. chaosdsm

    Solar charging 18650 on the AT light weight hiking

    I'm not sure of the actual output of the panel I posted above, I cannot get an amp reading off of my DMM, but it's hitting 4.32V in full shade (roof overhang), 4.60 - 4.85V in partial sunlight (est 30 -70% shade coverage) & 5.37V in full sunlight. I also charged a second 5200mAh 26650 by USB...
  7. chaosdsm

    Solar charging 18650 on the AT light weight hiking

    I realize OP has probably long ago made his/her purchase, but I did get my own 'trail charging system'. Solar panel was purchased from Amazon, it's an encapuslated 10 watt 5V panel from Lixada. Charger is an Xtar SC1 capable of 2A charging. I did a test yesterday on a drained (3.15V)...
  8. chaosdsm

    Best protected 18650 batteries out now for flashlights?

    My favorite is the Orbtronic 3500mAh dual-protection 10A high-drain cell. Panasonic/Sanyo cell inside with Seiko designed protection circuit, but a bit pricey, and at 68.9mm long, could be a tight fit.
  9. chaosdsm

    What is your oldest NiMH LSD battery, how well is it holding up?

    Not sold as LSD's, but I bought 16 10,000mAh Powerizer D cell NiMh's about 10-11 years ago, but no codes on them to look up manufacture date. I have 9 left which I use in my 5x D cell Maglite with Malkoff XM-L upgrade. 5 of them died because the Maglite (with incan bulb) was left on for who...
  10. chaosdsm

    how long do your charging cables last?

    Just found what my be the perfect cable.... brand name is "Snakable" $23 with Amazon Prime, uses a ball & socket strain relief boot system to prevent sharp bends near the connectors.
  11. chaosdsm

    how long do your charging cables last?

    Ones that came with my phones don't last but a few months, a year or so if left in the car.... But I do buy high quality cables ($25 - $50) & 2 of those have lasted for over 4 years, & 2 more for 2+ years, all 4 are still in perfect condition. They all have an exterior covering & extra long...
  12. chaosdsm

    Replacing Solar LiFePo4 with Li-ion

    Most likely, they won't fit... the only solar lights that I've seen that utilize LiFePO4 cells use 18500 cells which are available online at battery space for $3 each if you need a bunch, or I've seen Duracell LiFePO4 18500 twin packs (in two different mAh ratings) at Lowes for about $10 - $14...
  13. chaosdsm

    OPUS 3100-How many?

    Good deal on the 3400 but I try not to buy from ebay unless it's something I cannot otherwise find, 3100v2.2 is cheaper on amazon. Not quite comparable.... Lii-500 maximum charge rate is 1A per slot vs 2A per slot for the Opus huge charging time difference for high capacity cells Lii-500...
  14. chaosdsm

    OPUS 3100-How many?

    3100v2.2 is less than $40 at amazon and the 3400 is $54, both with free 2-day shipping for "Prime" members.
  15. chaosdsm

    I'm New To Solar Charging

    No "robust visual readout" on the intellicharger, may be thinking of the newer digicharger. Intellicharger only has 3 tiny LED's per slot to indicate charging status & charge level. Nitecore Intellicharger I4
  16. chaosdsm

    I'm New To Solar Charging

    Intellicharger I4 requires a 12V 10W (continuous) power source, you would need a minimum 20W 12V solar panel (unless you're in an area that sees very little cloud cover year round), and the correct 12V tip (just buy the car charger for it & cut the wire at the plug-in side) hard-wired into the...
  17. chaosdsm

    Things I should know before stripping a laptop battery for cells?

    Try asking this guy: https://www.youtube.com/channel/UCcMfCkN1juSa49DJFYltOTw - as I understand it, he's pulled all of his batteries from old laptop battery packs. Definitely worth checking out his Samba & Powerwall projects, which would be 10x more expensive (or more) if he went & bought new...
  18. chaosdsm

    Things I should know before stripping a laptop battery for cells?

    Strong plastic tools are a plus, as your less likely to accidentally short a battery ... here's a good example of how NOT to proceede - https://youtu.be/qc7UlvsQ-So Also, be sure to remove any wiring, circuitry, & any exposed metal that may be attached to the plastic case before you try to...
  19. chaosdsm

    need charger advice

    I have the D2 & Opus BT-C3100 V2.2 For small & low capacity cells; i.e. 800mAh 14400, 600mAh 16340, etc... the Nitecore is great. BUT, when it comes to high capacity cells; i.e. 3500mAh 18650, the only 'fast' option is to charge one or 2 at a time (one on each of the 2 circuits) on the...
  20. chaosdsm

    Testing 18650 battery under load

    A charger like the Opus BT C3100 / C3400 works great for this, & IMO is your best route without spending a ton of $$$. They have per slot configurable discharge rates of 200mA, 300mA, 500mA, 700mA, or 1000mA, as well as quick testing (internal resistance), long testing (mAh capacity), & refresh...
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