Article index

Mostly I write reviews, but once in a while I also writes something else. Due to the large amount of reviews these articles can be difficult to find on the category pages. For this reason I have duplicated them here.


Battery charge termination test
Termination



Disassembly of 9V LiIon batteries
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Disassembly of USB charged batteries
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How does a usb charger work?
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USB power information
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How far can LiIon be discharged?
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Disassembly of UltraFire 9900mAh 18650 battery
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My charger do not charge LiIon to 4.2V, is it faulty?
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Battery charging NiMH
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A look at different charge methods.


A look at QI (Wireless power transfer)
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Energy at low voltage in alkaline batteries
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Disassembly of some UltraFire batteries
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Nitecore chargers the i4 family and clones
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Discharge protection test
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Is my battery protected?
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My lab setup
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What equipment I uses and how it is arranged.



Disassembly of cheap 18650 battery
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Comparison of AA battery chemistries
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CR123A and rechargeable substitutes
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Internal impedance/resistance of batteries
ResistanceMeasurementA



Rewrapping a battery
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Estimating remaning capacity in LiIon batteries
ChargePercent



Building a high current adapter
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Measuring on a Flashlight
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A illustrated guide on how to make the most common electrical measurements on a flashlight.


What is a Hobby Charger
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A short explanation about hobby chargers and how to use them for flashlight LiIon batteries