Recent content by necromunger

fenix-store
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    xhp 70 12v driver

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    how long can you run your flash lights on full beam

    well looks like ill have to up the heat sink as i need to run it for as long as my bike battery lasts as it is a light for my bike tho should get better cooling going at 30mph ill just have to test it and see how much currant i can get b4 it gets to hot.
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    how long can you run your flash lights on full beam

    https://www.youtube.com/watch?v=6nMIhShd78g
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    how long can you run your flash lights on full beam

    ie how good is the heat sink for the led you have and how long it will last b4 the driver turns it off.
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    Help! I let my NCR18650B Batteries discharge too low!

    https://www.youtube.com/watch?v=UxMa9WEa9eQ
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    xhp 70 12v driver

    i just cant see the point in adding a heat sink for a driver in the light tbh ? are they that shite as the coil is so tiny it wont do max amps for very long if the temps are that high as got this one so high the button fell off and the solder was boiling on the pcb.
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    Help! I let my NCR18650B Batteries discharge too low!

    the best thing you can do is get a charger for the cells as even with the power banks i have do not balance charge them to 4.2v some under, some over so i either use my nitecore charger or the sky rc one that i also use to discharge test cells. with my Panasonic cells costing £11 for 2 and as...
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    How does a 3.7v 18650 provide 5 volts ???

    charged 18650 cells are 4.2v so looks like it is being boosted to 5v? and the 4 batts in parallel gives you the capacity of the power bank at that voltage. if you put them in series then each cell you add doubles the voltage so 4.2+4.2 is 8.4v so 2s 2p will give you 8.4v with double the capacity.
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    Help! I let my NCR18650B Batteries discharge too low!

    i shorted out a cable the other day testing my xhp70 and as you see it still works but the voltage drops and the amps sky rocket. https://www.youtube.com/watch?v=7NgUXXzadcQ i had to re flow solder the led back on the pcb with the gas cooker and a frying pan ;)
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    Help! I let my NCR18650B Batteries discharge too low!

    amps = heat watch that you tube vid ;) it should never get that hot charging even at 1 amp my nitecore charger charges at 500ma so there is a short some where im guessing as when it accidentally fell on the floor will not help lol ;) also under 3.6v these cells voltage wise fall off a cliff esp...
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    Help! I let my NCR18650B Batteries discharge too low!

    think i went a tad to far with this lol ;) https://www.youtube.com/watch?v=pzUpc34V0CY&t=4s
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    xhp 70 12v driver

    are these led flash light drivers any good for constant hi beam ie 3 hrs at at time as on my ebike i should be able to cool them down but how hot do these drivers get under full load ?
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    Help! I let my NCR18650B Batteries discharge too low!

    sounds like there is a short in the micro usb socket if it is getting hot like that so id stop using it as you could short the cells and you dont want that. this is 1 of the ones i use. http://www.ebay.co.uk/itm/152101697909?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT its 2s 2p...
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    Help! I let my NCR18650B Batteries discharge too low!

    max discharge for those cells are 2.5v if they drop any lower then will damage the cell and will get a drop in capacities and might not get it charging again but you can use a charged cell to bump start it again ++ -- from say a 3.2v cell. when there in parallel they should even them self out...
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    xhp 70 12v driver

    thanks for the link will have a look but i am in the uk. ;)
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