Batteries and chargers
This page contains reviews and other information about chargers and batteries. For usb chargers see USB power supplies/chargers and USB power boxes.
Index to specific brands: AW, Efest, EnerPower, Keeppower, TrustFire
Index to comparators: 18350/16340/14500/10440/etc., 18700/18650/18500/17650/etc.



Test of Eneloop AA HR-3UWXB 2450mAh (Black)




Charger Soshine SC-S1mix V3




Contour AA (Green-cyan)




Internal impedance/resistance of batteries




Charger TrustFire TR-001




UltraFire UF26650 5000mAh (Flame)



Eneloop AA HR-3UTGB 1900mAh (White)




Review of charger Soshine SC-S1max V3




Efest IMR26500 3000mAh (Blue)




Rewrapping a battery




Charger Xtar VP1


A very good dual channel LiIon charger.


Efest IMR26650 3000mAh (Blue)




TrustFire TF26650 4000mAh (Black-silver)




UltraFire BRC32600 4000mAh 3.0V (Green-white)




Charger Fenix ARE-C1




Charger Efest BIO




EnerPower 26650 4500mAh (Dark blue)




Charger Sysmax/NiteCore i2




Charger Soshine SC-S7




Estimating remaning capacity in LiIon batteries




King Kong INR26650E 4000mAh (Gold)




Charger module with TP4056 controller




King Kong ICR26650 4000mAh (Gold)




Full comparison of smaller LiIon batteries


The link to the individual battery reviews has been moved to this comparison. This test includes 10440, 14500, 16430 and 18350 size batteries.


Charger EnerPower EP-18650DC2




Charger UltraFire WF-128 or Q-128


Charges 4 LiIon cells and has usb output.


Charger ML-102


Single LiIon cell charger with usb input and output.


A123 26650 2500mAh (Green)


This battery can deliver 70A!


A123 18650 1100mAh (Yellow)


This is a 18650 battery, but has lower voltage than the common LiCoO2 batteries.


Keeppower 26650 4000mAh (Black)




AmpMax AM10




Charger Xtar SP2




Soshine SC-S2




TrustFire TF26650 5000mAh (Flame)


This test includes batteries from both DealExtreme and Manafont.


SysMax/NiteCore Intellicharger i4 V2




Full 18650 comparison


The link to the individual battery reviews has been moved to this comparison. This test does not only include 18650 size batteries, but anything close to that size, i.e. 18700, 18500, 16650, 17650.

SysMax i4


Review and measurements on the SysMax/JetBeam/NiteCore i4 quad bay universal charger. This charger can handle both LiIon and NiMH batteries.


Xtar WP2 II


Review and measurements on the Xtar WP2 II dual bay charger with USB power output.


Charger Cytac CT-015


Review and measurements on the Cytac CT-015 dual bay charger.


Charger 4Sevens Single Bay V2


Review and measurements on the 4Sevens single bay charger V2.


Charger Xtar MP2


Review and measurements on Xtar MP2 dual channel LiIon charger.

Charger Xtar MP1


Review and measurements on Xtar MP1 single channel LiIon charger.

Charger Xtar WP6 II


Review and measurements on Xtar WP6 II 6 channel LiIon charger.


Charger CottonPickers DM + 4 settings


Review and measurements on CottonPickers charger with 4 current settings and DM (digital voltmeter.


Charger CottonPickers 4.35 volt + DM


Review and measurements on CottonsPickers charger for Samsung ICR18650-30A cells.


Charger UltraFire WF-188


Review and measurements on the UltraFire WF-188 charger.


Charger 4Sevens Single Bay (Recalled version)


Review and measurements on the 4Sevens single bay charger V1.


Charger XTAR WP2


Review and measurements on the XTAR WP2 charger.


Charger XTAR WP6


Review and measurements on the XTAR WP6 charger.


Charger UltraFire WF-139


Review and measurements on the WF-139 charger.


LiIon 18650 batteri comparison 2011


A comparison of the different 18650 batteries. Note: This document will be updated when I receive new batteries.


What is a Hobby Charger


A short explanation about hobby chargers and how to use them for flashlight LiIon batteries


LiIon 18650 batteri comparison 2010
A comparison of the different 18650 batteries.