20700 battery

Discussion in 'Battery Junkies / Chargers' started by Argie3, May 19, 2017.

  1. Argie3

    Argie3 Member For 1 Year

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    Hi there!
    I just ordered the ijoy captain which is mounted with a pair of 20700 batteries which is a nice gesture from the manufacturer.
    Upon looking at the data, I noticed that the type is li-ni (presumably lithium nickelium?) As opposed to li-ion of 18650 batteries.
    The question is, can the 20700 batteries be charged in the same nitecore charger as the 18650, on the assumption they fit the slot???
    This might sound like a silly question, but I'd better be safe than sorry...
    Many thanks in advance!!!
     
  2. inspects

    inspects Squonkamaniac Staff Member Senior Moderator VU Donator Platinum Contributor Member For 2 Years

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    Yes, same charger fits fine.
     
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  3. Argie3

    Argie3 Member For 1 Year

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    Many thanks, but what I mean is not whether it fits but if it is safe to use the same charger due to the difference in the components as nitecore's manual doesn't make any reference to li-ni batteries....
     
  4. IMFire3605

    IMFire3605 Bronze Contributor ECF Refugee

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    There are Li-ion batteries. Just like Lithium Polymer packs are still Li-ion batteries. Lithium-Nickel aka INR is safer and more stable than Lithium Carbon or ICR, where the safest chemistry is Lithium-Maganese or IMR chemistry. INR is right in the middle of the other 2 chemistries, gives just as high CDR output of an IMR, not as unstable as ICR which can literally explode, where IMR will bubble and hiss, INR worst case scenario will vent like a roman candle at worst but most times boils a bit more aggressively than IMR batteries do.

    A little more information than you requested, but that is the basics, also being a Nitecore charger will detect and charge properly a Samsung 25R or LG HG2, both INR chemistry like those 20700's it will handle the batteries just fine if they fit the slot.
     
  5. Argie3

    Argie3 Member For 1 Year

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    Hey, that's indeed far more than I asked for!!! Haha
    Thanks indeed, interesting reading and thoroughly answers my question!!!

    Thanks once again
     
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  6. zeeter

    zeeter New Member

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    I just got the 20700 batteries last night with the ijoy captain and am using the included charge cable. It has been on this charger for at least 4 hours, though the charging has progressed. I am using a phone charger at 2.4A. It just doesn't seem to want to finish that last stage of charging. Any suggestions?
     
  7. Carambrda

    Carambrda Silver Contributor

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  8. zeeter

    zeeter New Member

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  9. Carambrda

    Carambrda Silver Contributor

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    The mod's internal charging circuit is very limited so it can't draw that many amps from the phone charger. Nevertheless you should avoid charging batteries inside a mod. Get a separate charger. But if, for whatever reason, you must temporarily charge your batteries inside your mod (e.g., if your separate charger is broken and it's the only separate charger you have), then don't use an iPhone charger or other Apple charger intended to charge Apple iDevices because due to their different design they are dangerous when used to charge batteries inside a mod so instead just use a regular phone charger that is capable to output up to a maximum of 2 amps or more. Also please note there are a lot of mods out there that will overcharge the batteries if charging them inside the mod, and this can also be dangerous. But anyway, I own the Nitecore NEW i4 myself... it really doesn't take much time to charge two of my four iJoy 20700 batteries in it... dunno exactly how long it takes, but it's reasonably quick.
     
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  10. IMFire3605

    IMFire3605 Bronze Contributor ECF Refugee

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    There are 2 factors you are not possibly considering, Carambrda has stated the obvious, you still need an external dedicated charger for removable batteries, these chargers do only 1 function charge batteries so there are less issues with safety as they only do one job.

    1st issue, most batteries get a factory/shipping charge, this is enough charge to keep the electrolyte from eating the battery internals up also to keep them stable during shipping/long term storage, this charge is about 3.5 to 3.7v, then you have the Mah (milli-amp hour/thousandths of an amp hour) rating, example 1500mah or 3000mah, the higher the Mah rating is how much energy can be stored, what we call runtime, higher Mah, longer it takes to charge
    2nd issue, charging current, this is the charging circuit inside the mod that controls this, your charge source you say is 2.4amps per hour (2.4amp hours, or 2400 mah milli-amps per hour), but if the charging circuit of the mod only pulls 1000ma, that is 500ma per battery, divide that into the Mah of a battery and you get a ballpark of how long the battery should take to charge at max charge, however if the charge circuit is trickle charging, starts slow at first, ramps up to full charge amps until about 80 to 90% full charge then it shifts down to trickle mode again and finishes the charge to be more precise and accurate, a 3400 to 4000mah battery alone and 500ma should take about 6 to 8hours to do a first charge.
     
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  11. zeeter

    zeeter New Member

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    The charger should be here tomorrow night. I have no choice but to use the included charge cable with a phone charger tonight. Should be good to go after that. I got the 4 bank charger just in case both of my mods go at the same time. Fortunately I have a pen e-cig to get me through those tough times.

    Yep - I'm thinking of getting another mod. I have an ikonn 220 and a ijoy captain. The ikonn is like an alien clone.
     
  12. Carambrda

    Carambrda Silver Contributor

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    I've been enjoying this tube mech mod for a while now... it has two iJoy 20700 batteries in it:

    XXX.jpg
     
  13. MaxPerilous

    MaxPerilous Bronze Contributor ECF Refugee

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    I use the Nitecore i4 to charge mine. It does a good job and the batteries fit just fine. Slide in nice and easy and charged WAY faster than they did in my old charger. Also when I was using just the usb cable, they weren't charging evenly within the Captain itself.

    20170717_191530.jpg
     
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  14. Carambrda

    Carambrda Silver Contributor

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    Never mind him... the charger in the picture he posted is NOT the i4... instead it's the NEW i4 (they are two completely different models).
     
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  15. zeeter

    zeeter New Member

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    I got the intelligcharger i4 by Nitecore. The 20700s really need to be pushed in there. They fit and once in there it reads the battery fine.

    Wish I had gotten the new one, though. Looks like it has more features.
     
  16. zeeter

    zeeter New Member

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    Let me expand on my previous post. I have the 2014 version of the charger. The batteries do fit, though they need to be pushed in with a slight amount of force. Not brute force, mind you. Just I need to add a little pressure to get them in there.

    Is there any technical reason why these batteries would charge improperly if in the charger? Again - I am not doing any physical harm to the battery to get it in there.
     
  17. Carambrda

    Carambrda Silver Contributor

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    It will charge them just fine, but you'll have to keep making sure not to damage the shrink wrap of the batteries whilst pulling them off of the charger. In the event that the shrink wrap gets damaged, you should replace the shrink wrap before continuing to use the battery─and the same applies to the insulating ring around the positive contact on the battery; it's easy, fast, and cheap. Luckily however, the shrink wrap on the iJoy 20700 battery is relatively thick and strong.
     
  18. MaxPerilous

    MaxPerilous Bronze Contributor ECF Refugee

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    I can't comment on the old version. But the "New" one they slide in quite easily no force required. I have an old Tenergy charger and I could charge one at a time but yeah, took a bit of force to get it in there. They seemed to charge ok, just didn't have time to charge one at a time considering I'm going through at least 3 sets of batteries a day.
     
  19. zeeter

    zeeter New Member

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    Yeah, I wish I'd noticed the version when I ordered. I just saw Intellicharger i4 and figured that's the one I wanted. I didn't know there was a new version of the same model.

    Fortunately it's not like it cost me an arm and a leg.
     
  20. MaxPerilous

    MaxPerilous Bronze Contributor ECF Refugee

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  21. ModVapes

    ModVapes New Member

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    I have an older nitecore i2, I know what you mean, it's difficult to press the batteries into the slot. One of the channels stopped working so I ordered and just received the sc2 which is supposed to charge at 3 amps... it came with no instructions! The battery slots are really smooth, where as the i2 the spring was too strong for my batteries. It actually pushed the flat top of the sony vct4 batteries in (my samsungs were no problem, they are a stronger metal) so be gentle when you place your batteries in the i4, I'm sure it is made the same way as the i2. The springs are too strong, or something. I wanted the sc4 slot charger, but 101 vapes didn't have it so I settled on the 2. They do have the New i4 for 19.99.
     
  22. skt239

    skt239 VU Donator Gold Contributor Member For 1 Year

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    Get the new i4 and make the old one your travel charger.
     

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