RC India

RC Equipments => Batteries and Chargers => Topic started by: subhashjk0508 on January 25, 2015, 05:05:02 PM

Title: MAh rating of lipo/li-ion batteries!!
Post by: subhashjk0508 on January 25, 2015, 05:05:02 PM
I went down to S P road today, was looking for few 18650 batteries!! one guy offered me a ultrafire 4200mah for 50rs!! so here i'am wondering how do i test the battery mah rating, i did some googleing and found out i could use a constant current load and a stopwatch to figure it out!! is there a easier way because i need to build a whole circuit, and im not much into electronics!!and i got a samsung 2200mah for 245rs, which i think is geniune because the seller is a battery supplier!! can someone help me out here!!

regards,
JK
Title: Re: MAh rating of lipo/li-ion batteries!!
Post by: chintal on January 25, 2015, 06:28:05 PM
If you need original Panasonic ncr batteries or battery pack made please contact me via pm

Regards
Chintal
Rcmumbai.com
Title: Re: MAh rating of lipo/li-ion batteries!!
Post by: akhilzid on January 26, 2015, 12:36:32 PM
ultrafire  :o ,

make sure thats original, i have 3 of them 4000mah and 4200mah. but all are duplicate can be charged using 1Amp takes only near 1 hour from 3.4v to 4.2.
they looks same as original ultrafire, and got many other with UltraFlrc, UltaFire, UitraFire etc.
Title: Re: MAh rating of lipo/li-ion batteries!!
Post by: subhashjk0508 on January 26, 2015, 01:39:54 PM
yup, those are just fake, and if you open up one of them you'll find a small lipo battery!! contacted chintal sir for the bettery and opened up a dell laptop battery which i got for free from a source, but the problem is i cant find the same identical batteries!!

regards,
JK