How long do IMR 18650 batteries last over there lifetime? or how long till they need to be replaced?
How long do IMR 18650 batteries last over there lifetime?
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I don't know for sure, but have heard comments about 300 charge cycles.
t.b.h. I've known fairly good quality ones to get weak after half that amount of charges, many only on half discharge.
t.b.h. I've known fairly good quality ones to get weak after half that amount of charges, many only on half discharge.
Ball park, 300 charge/discharge cycles. That can vary by a bit, depending on how they are used, stored, and charged.
Yes, "we" are,
(Don't forget YOU are a part of the collective now!)Damn, what batteries are you using? That stinks!
I purchased a set of four Efest red IMR 18500s in April of 2013. One of the four gave up the ghost a couple of months ago at about 270 charge cycles. The other three are going great at well over 300 charge cycles. I don't baby these batteries. They get discharged right down to 3.2V before recharging.
The number of charge cycles is determined more by usage and battery chemistry than battery size. I suspect Efest red 18650 would deliver about the same number of charge cycles as their red IMR 18500.
The number of charge cycles is determined more by usage and battery chemistry than battery size. I suspect Efest red 18650 would deliver about the same number of charge cycles as their red IMR 18500.
Yes, "we" are,
Damn, what batteries are you using? That stinks!
I've tried a few. Right now I'm using Efest 3100mah 20A.
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hum.... I didn't think of that. I'm using a trustfire charger. I heard they are not so good. Which charger would you recommend?
I've heard great things about nitecore chargers. I have an i2 to charge my two efest batteries
I have been using a Nitecore Intellicharger i4 for the past two years with great success.
Before that I used a Trustfire TR-001. I can't recommend that charger at all. The Trustfire continued to trickle charge the batteries even after the charging light turned from red to green (meaning the batteries were charged). If batteries were left in the charger for several hours on the green light they would be charged to over 4.2V (overcharge) which can reduce the life of the battery.
The Nitecore chargers will not charge past 4.2V.
Before that I used a Trustfire TR-001. I can't recommend that charger at all. The Trustfire continued to trickle charge the batteries even after the charging light turned from red to green (meaning the batteries were charged). If batteries were left in the charger for several hours on the green light they would be charged to over 4.2V (overcharge) which can reduce the life of the battery.
The Nitecore chargers will not charge past 4.2V.
I am using an Efest LUC, and my batteries are anywhere from 6 to 14 months in service and still going strong(ish). The first Efests I bought are starting to noticeably fade.
Overcharging is much, much worse than undercharging, and can kill a battery in short order.
I've been using that site for battery and charger reviews for a while now. He knows what he's talking about. Good call Rat2chat2
I've been using that site for battery and charger reviews for a while now. He knows what he's talking about. Good call Rat2chat2
Thank you. I may not know a whole lot but I darn sure know how to bookmark what I have learned from others.
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