Test / Review: 18650 Redilast 2600 mAh Battery

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benckie
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Test / Review: 18650 Redilast 2600 mAh Battery

I brought a pair of Redilast 2600 mAh batteries they took 19 days to get to me in Australia, they are $14.75 USD each pluss shipping.

First impressions well made nice thick wraper, good quailty cell,s and they look nice for a battery lols so i gave them a quick check over.

Cell A 3.78 volt out of the packet, Internal Resistance 94 milliohms

Cell B 3.78 volt out of the packet, Internal Resistance 94 milliohms

Cell A Discharged to 3 volt (they can go to 2.75 volt) and then i recharged at 0.5 amp

Cell B Discharged to 3 volt (they can go to 2.75 volt) and then i recharged at 0.5 amp

These have to be the closest matched cells ive seen, so far i give them the thumbs up.

A quick description of the above tables

Zenit [s] is time of the charge, it is updated every 2 seconds.

Input [V] is how much volts my power supply is giving my Ichager 106B+

Voltage accu [V] is battery voltage

Current [A] is how many amps the charger is charging or discharging the battery or batteries.

Capacity [mAh] is how long the battery will last under load. A 2500 mAh battery should be able to give 2.5 amps for one hour till empty.

 

I will do some high draw dish charge test when i have time.

Edited by: sb56637 on 08/26/2014 - 17:47
benckie
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a link to my trustfire flame 2400 mAh battery test

http://budgetlightforum.com/node/5230

a link to my solarforce 2400 mAh battery test

http://budgetlightforum.com/node/5771

a link to my hi-max 2600 mAh battery test.

http://budgetlightforum.com/node/5919

benckie
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Tail Cap Current Draw Comparisons Of My P60 Drop-in

solarforce 2400 mAh (A) 1.67 amps

solarforce 2400 mAh (B) 1.67 amps

Ultrafire (grey) 2400 mAh (A) 1.23 amps (from buyincoins they only take 900 mAh)

Ultrafire (grey) 2400 mAh (B) 0.7 amps (from buyincoins they only take 900 mAh)

Trustfire Flames 2400 mAh (A) 1.51 amps

Trustfire Flames 2400 mAh (B) 1.50 amps

Redilast 2600 mAh (A) 1.70 amps

Redilast 2600 mAh (B) 1.71 amps

Hi-max 2600 mAh (A) 1.44 amps

Hi-max 2600 mAh (B) 1.45 amps

Panasonic NCR18650A (A) 1.69 amps

Panasonic NCR18650A (A) 1.72 amps

This is for comparison only generaly cells that have the lower internal resistance have the highest current draw. But bad cells can also read high due to high internal resistance and or bad voltage drop ive found.

benckie
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3 amp discharge test from fully charged to 3 volt

Cell A

2391 mAh

Cell B

2411 mAh

They did good

benckie
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If people are wondering how i come up with the above data table's i posted on this battery test, i data log using my icharger 106b+ connected to my computer for my battery tests, i use a program logVeiw V2.7.4* with icharger 106B+ with firmware v3.14 upgrade and then recalibrated the charger.

I use this program for my data log,s and for the data charts i post

http://www.logview.info/vBulletin/content.php?47-screenshots_1

I use the data tables instead of graphs becuse i find it simple and think it would be easy for other people to read and the data tables includes charge time updated every 2 seconds, voltage, watts, engery, mAh, plus induvidual cell voltage for upto 6 cells, internal temp of my charger, battery temperture, the chargers imput voltage from the power supply and so on and i can not get all that infomation on one graph.

I usualy only include the end of the charge cycle then hit the print screan button on the key board while the logVeiw program is running and opean on the screan of my computer, save the image in paint, then crop the image down with microsoft picture it! then up load the image to photobucket then post the image on the thread.

I cut out things like battery and charger tempture and induvidual cell voltage if im only doing one cell at a time to test.

benckie
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I was reading on the redilast website that these cells have a maxium discharge of 5.2 amps so i thought why not.

Cell A 5.2 amp discharge test to 2.75 volt.

Volts Vs mAh

benckie
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Cell B 5.2 amp discharge test from 4.16 to 2.75 volt

Volts Vs mAh

Volts Vs Wh