1. P

    Li-ion battery charging termination current

    Hi all, I have a question about Li-ion rechargable batteries. I have almost no experience with it. Documentation to battery is very poor, but there is an info about charging profile: Stage 1: Constant Current 0.82 Ampere (0.2C) until Voltage reach 4.2V Stage 2: Constant Voltage (4.2V) with...
  2. eliasklk_04

    XML T6 LED DRIVER MODIFICATION

    Good night. I bought this flashlight for my bike: https://www.ebay.es/itm/Luces-Bicicleta-Luz-10000LM-Impermeable-3XT6-LED/292872854958?ssPageName=STRK%3AMEBIDX%3AIT&_trksid=p2057872.m2749.l2649 But the light that comes out seems very little to me. I think it has more potential. Could I modify...
  3. Tamás Fegyvári

    Non inverting DC-DC converter that makes fix 4V from a decreasing voltage from 4,2V to 2,8V?

    Hi! Is it possible to make a a non inverting DC-DC converter that makes a fix 4V from a Li-ion battery's voltage. I need about 1,5A. The input voltage starts from 4,2V and decreasing to 2,8V as the battery discharging.
  4. Carlosonline

    Li-Ion Battery Managment IC Issue

    Hi, I would appreciate if someone would be able to comment/advice on the following matter. I have been looking around for an IC that would charge and balance Li-Ion cells 2-3 of them in series. It seems that the balance feature is absent in most cases. MCP73841 appears to provide most of the...
  5. N

    Battery protection board needs to have voltage applied to output before turning on.

    Hello I have a Lithium ion battery pack that uses a small protection board that protects the battery pack from short circuits and under voltage. I am using 2 lithium ion cells in series for a nominal 7.4 volt output. The wierd thing is the protection board has to be first initialized by...
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