Recent content by torukmakto4

fenix-store
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    IS THE SONY VTC4 THE HIGHEST CONTINUOUS DISCHARGE RATED 18650 BATTERY CURRENTLY?

    The A123 APR18650 is 1100mAh 30C, so 33A continuous, theoretically. That is probably the highest discharge current rating out there ATM. However, on a power basis, a 3.7V cell will take the cake. The Sony US18650VTC3 and VTC4 are both rated for 30A continuous but the latter has a capacity...
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    Replacing the battery on a CREE XM-L XML T6 3 LEDs 3800Lm Bicycle Light

    On reliable 5000mAh 18650 cells: 5000mAh 18650 cells do not currently exist. Anyone claiming to sell a 5000mAh 18650 is lying. There is a very, very new 3600mAh Panasonic NCR18650G that is real hard to get. That's as high as they go. The other manufacturers have some recent 3200mAh high charge...
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    Turnigy Accucell-6...Am I missing something?

    NiMH discharge is for packs. The charger is rated to charge and discharge 15 cell series packs. You can set the cutoff voltage for NiMH Discharge between 0.1V and 25V. More here: http://www.hobbyking.com/hobbyking/store/uploads/ACCUCEL_manual%282%29.pdf
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    Turnigy Accucell-6...Am I missing something?

    I believe you can use NiMH Discharge and set the cutoff voltage to whatever you want. (WARNING: Risk of :poof:. Be careful to check settings and not accidentally use NiMH Charge or Cycle on the Li-ion cells after doing this!) Also, what cells do you have? I would only worry about 3.0V/cell...
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    Why are there no larger lithium primaries than CR123A's and AA's?

    There are Li/MnO2 cells larger than 2/3A: http://aircraft.saftbatteries.com/Produit_LM_M_cell_ranges_302_254/Language/en-US/Default.aspx for example (apologies if that is considered a link to a vendor). 13Ah D cells capable of 4A continuous, 33Ah/6A "big DD" cells! However, availability in...
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    Lithium Ion batteries doing the impossible? 250% capacity!

    Precisely what are these cells?
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    Panasonic NCR18650B contact plate .... crusher

    I would check for interference in the light configuration with these cells, i.e. determine if the springs run out of travel and mash the cells when you screw the light together. Panasonic NCR18650B cells don't have a raised negative terminal. Your cells are not first party Panasonic products...
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    Best 16340??

    IMR/high current cells are the way to go. If you want reliability and durability you would be best served by not running a LiCo 16340 cell hard with 2 amps continuous. If you don't want cells "randomly shutting off" and must have lowest possible self-discharge rate, you do not want a protected...
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    XTAR VP1 buzzing

    Re: XSTAR VP1 buzzing XSTAR? The brand (at least the real one) is "XTAR", I hope that is simply a typo. I have some reputable manufacturer and old (high quality and overdesigned compared to today's value engineered stuff) switchmode PS that do make audible HF noise under various load...
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    Permanently paralleled lipos?

    Paralleled cells can't develop imbalance because they are all clamped to the same voltage as the rest of the pack. They will act as a single cell. Commercial multi-P packs (RC LiPo, power tools, consumer electronics, EV, etc.) have cells permanently parallelled. There is no provision for...
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    Test/Review of Orbtronic 18650 3600mAh (Black)

    The original NCR18650 was correctly an 18650 cell. It used the same can as all other Pana cells of recent memory. The NCR18650A was correctly an 18650 cell. It used the same can and had the same dimensions as the NCR18650. The NCR18650B was correctly an 18650 cell. It used the same can and had...
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    Cgr18650CG with dots/without dots- difference???

    The CGR18650CG cell is supposedly identical to the CGR18650CH (NMC hybrid, 2250mAh, 10A cont. discharge current rating) with the addition of a PTC as additional safety, to be used in low current apps where the PTC is permissible. My guess is that at the time of that cell's development, 2250 was...
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    How long do 18650's stay charged?

    Re: How long will an 18650 stay charged? Actually, CGR18650CG is not a LiCo. That is the PTC equipped version of the CGR18650CH which is used in high current apps up to 10A continuous (no PTC). It's a hybrid cell, NMC, I forget what Pana document mentioned that but it's out there somewhere...
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    Replacing the battery on a CREE XM-L XML T6 3 LEDs 3800Lm Bicycle Light

    The issue with using a LiPo pack (what you linked) is that those are "raw" packs without protection PCBs. The stock pack, if it's what I think it is, has onboard protection and balancing. The balancing is handled by using a balancing charger (as in the type you linked) but you need to provide...
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    Replacing the battery on a CREE XM-L XML T6 3 LEDs 3800Lm Bicycle Light

    Sounds like a 2s2p pack of 18650 cells with a protection/balancing PCB. You can get these types of packs from some battery vendors on eBay, as well as simple CC/CV chargers used to charge them. 8.4V is not correct, this is either a 7.4V pack or it's not Li-ion. 8.4V is the charge voltage (not...
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