what's your personal buffer zone

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shuggibear

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Mar 8, 2015
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Any rebuilders have their own personal quirks for safety on their batteries? I like to keep a huge buffer in my in my amps. Example, I low ball my readings for ohms, calculate 0 voltage drop (not realistic i know), and calculate my batteries as if they are always fully charged. After all that I make sure I'm under 10 amps even though I'm using efest purple 2500 mah 18650 20A (I don't trust the sticker saying 35A)
paranoid or cautious? Anyone want to weigh in with stuff they do that may seem like it's too much to others?
disclaimer: I don't think anything is weird when it comes to what anyone does to be safe not do I think anyone and everyone who does it differently is stupid.
 

Susan~S

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I have adopted tj99959 line of thinking.

Everyone is free to set their own parameters, and I can only say what mine are.

I try to never exceed 50% of the CDR of a battery. So with your 20a batteries, that would be 10a.
This Ohm's Law Calculator tells me that a .4 ohm build is as low as I would want to use.

The reason that I place a 50% limit is because as a battery ages the mAh of the battery degrades, as the mAh degrades ... so does the batteries c rating. (amp limit) So down the road, your 20a battery may only be a 10a battery.
 

InTheShade

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Sounds good to me Shuggi, I almost never vape below 0.5 these days anyway, but triple-fudging your figures on the side of safety isn't a bad thing.

Checking the voltage of my batteries used to be my thing. I would constantly be pulling them out of my mech and check them to make sure I wasn't running them too low. I'd check them before, during and after charging too. Not so much now I mainly use a regulated APV and have a digital charger, but I was pretty obsessive about it before.

I still inspect my batteries after every use, making sure there are no nicks or tears in the wrapping and I label the married pairs and use them in rotation to make sure I get the same number of cycles on each pair. I have all my batteries labeled with dates of purchase and I keep them all ordered in plastic battery boxes.

My wife wishes I pay this much attention to detail when I unload the dishwasher (why does it matter the small plates go on top of the bowls and not the dinner plates anyway?)

All this because of the members of this forum drilling battery safety in to me as a new vaper - so yeah. not a bad thing at all.
 
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dbrandt01

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I never build low enough to need to worry about it. I stay in the 0.6 or 0.7 ohms on my Reo's, but I always check with a multimeter and ohm meter that the numbers are the same between both checks.

I think it's a good thing to practice. I'd rather have your thought process instead of building stupid low like 0.1 ohms like some people do and don't seem to care.
 

Visualabstrakt

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Feb 3, 2015
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Hi. Im new to vaping so i dont know too much. I do think about safety though and have searched about battery safety. I just started to get into rebuildables and i shoot for .5. I do like the warm vape sub ohming gives though. Ive been thinking of going to .3 just to try it out. Ive got an ohmeter and a quality battery charger already so i think i should be good. I did have a scare though a while back when a b&m did a rebuild for me. I didnt have a ohmeter at the time but assumed the build was good. I liked the vape but my mod heated fast. I got home and checked it out. It read 0.018. I was using a 18650 vtc4. I ended up changing the build cuz i didnt want to risk it.
 
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