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  1. Harwich Shooter

    Harwich Shooter Donator

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    Good morning folks. Can anyone point me towards a good quality, high capacity 18650 battery. The ones I have purchased in the past year have been very hit and miss.
    Cheers,
    Paul
     
  2. Harwich Shooter

    Harwich Shooter Donator

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    Last edited: Jul 12, 2014
  3. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    I use torchy 18350, and an efest soda charger,

    both perform very well:)
     
  4. Harwich Shooter

    Harwich Shooter Donator

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    Thanks Stevie76. Torchy come out well in the comparison article.
     
  5. tisme

    tisme Donator

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    What a great find. Cheers for sharing, I've bought a few crap batteries so hopefully I can now repalce with some good ones.
     
  6. Ganton Gunner

    Ganton Gunner Super Duper Moderator Staff Member Mod/Admin

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    I use Panasonic and sanyo 18650's both thanks to 2 laptop batteries :) and I get 2 days use on my nemesis and I do use it quite a bit
    please note that is 2 days use per battery ;)
     
    Last edited: Jul 12, 2014
  7. terry1001

    terry1001 Major Poster

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    Laptop batteries are usually a good source of better quality cells but they should be stripped carefully. They often have 6 cells arranged as 3 serial/2 parallel but may have more or fewer cells or arranged for a different voltage and the individual cells are stuck in place with a very strong double sided tape. In a dead 6 cell battery it is usually only 1 or 2 cells that are finished and sometimes they can be revived after several charges but it is a good idea, if not essential, to use a good quality, intelligent battery charger - I use a NiteCorei4 which will charge 4 cells (of different types/sizes if required) at the same time.
    The top branded laptop batteries will normally be the ones that contain good quality cells. The laptop battery itself has protection circuits built in so the individual cells won't have protection if this is important to you. Protected cells have a small pcb fitted to the positive end, these can be added if required but it does make the assembly a bit longer and sometimes the protected cells don't fit into some torches etc.
     
  8. Evolve82

    Evolve82 Big Poster

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    Is this a 'safe' charger? Looking to buy one but don't want to burn my house down! lol
     
  9. BarneyC

    BarneyC Donator

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    Don't muck about just get a NiteCore off Amazon
     
  10. Harwich Shooter

    Harwich Shooter Donator

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    Agree with Terry and Barney. I purchased the Nitecore off amazon too.
     
  11. Evolve82

    Evolve82 Big Poster

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    I am just about to buy it too. Better spend a few quid more to be safe!
     
  12. some bloke

    some bloke Busy Member

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    Another vote for lappy cells, there is usually only one or two duffers - generally all in the same block of two or three cells, and possibly only because of a balancer fault. Given that laptop suppliers won't be wanting warranty returns they generally use the very best quality ones.

    Being as they are 'free' they represent extremely good value for money and no problem to keep another free pair in a pocket on standby. :)

    I have used them on umpteen 501b torch build tests - running until the torches dim/flash or stop, and not had an explosion yet... despite 'tinternet claiming they explode if recharged from too low a state. :rolleyes:

    I also run my scopeless builds with them, getting some three hours non stop because they don't have the protection circuit to shut them down. If you have any doubts charge them outdoors on an extension cable - or there are special fireproof charging bags for girls. :p

    Best Google 'recharging unprotected 18650 cells'
     
  13. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    The efest soda is safe as houses.
     
  14. Evolve82

    Evolve82 Big Poster

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    Just bought a pair of torchy(Panasonic inside) batteries and a Nitecore charger. Am sure all will be good with that!
     
  15. Stevie Darling

    Stevie Darling Sexual tyrannosaurus

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    Fine with those mate, it's the non-brand chargers I would stay away from, so far the battery's from torchy have been excellent!!
     
  16. Flykilla

    Flykilla Engaging Member

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    Cheers Guys,

    I didnt realise that laptop batteries contained the batteries we can use for our NV set ups. I just nipped down to our IT dept and am now the proud owner of 27 18650s.. Brilliant. I will see how many are still ok.
     
  17. terry1001

    terry1001 Major Poster

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    Be careful breaking down the batteries, they are usually very well stuck together and you don't want to stick a scredriver into one and short out a couple of the cells. The cells have tabs soldered on which can be cut with a decent pair of sidecutters. You can remove them from the botton (negative) end by holding the tab with the sidecutters and gently rolling the tab which should pull it off without doing any damage. At the other (positive) end you may want to leave a few mm of tab so that you can fold it over because most of the cells will have flat tops and may not make contact in some devices or holders. If you want to make up battery packs you can leave both tabs in place for soldering.
    Don't forget that the cells from these batteries won't have any protection circuits built in so will need just a little bit of extra care and don't let them run flat in use.
     
  18. Flykilla

    Flykilla Engaging Member

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    Thanks for the heads up Terry. You can never be too careful. They came apart pretty easy though and as luck would have it, these are dell batteries and all so far are showing 3.7 volts.
     
  19. terry1001

    terry1001 Major Poster

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    If they have 3.7 volts as stripped then they should be fine, that's the nominal voltage for the Li ion cells. You should be able to charge them to 4.2 volts and I change mine before they start to dim which is where the benefit of having plenty of spares is found. Usually if they are discharged too much then they're finished but sometimes they will come back if you charge them a couple of times.
     
  20. Cap Loz

    Cap Loz Member

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