IW2BSF
Member
- Joined
- Jan 22, 2016
- Messages
- 58
I have "open" a battery pack , in my web site you can download the PDF of this , here:
https://rodolfo-parisio.jimdo.com/nuovi-articoli-2017/
you can try near the end of my wbe page , in the section called " DMR radio ..... "
- sorry is in italian language but you can used the google translator for english !
- is a litium battery pack of an retevis dmr radio
But i think the battery pack is similar .... inside like the KENWOOD PB-42
there are 2 lithium battery connect to a PCB that :
- Protect to overcharge (over 4,2 volt ) !
- Protect to overdischarge ( down 3,5 volt ) !
- and MOST IMPORTANT charge this 2 elements in BALANCE MODE
if the battery NOT put out any voltage is probably the INTERNAL PCB protection
is an Seiko Sii integrated circuit smd at 8 pin and 2 mosfet ...is dead , but the
battery are ok !
before you put your battery pack in the rubbisch , open and control this !!!
REMEBER that if you have problems inside the TH-F6 kenwood there are 2
smd fuse .... i indicated this fuse in another PDF article in my web site !
best 73 de IW2BSF - Rudy
https://rodolfo-parisio.jimdo.com/nuovi-articoli-2017/
you can try near the end of my wbe page , in the section called " DMR radio ..... "
- sorry is in italian language but you can used the google translator for english !
- is a litium battery pack of an retevis dmr radio
But i think the battery pack is similar .... inside like the KENWOOD PB-42
there are 2 lithium battery connect to a PCB that :
- Protect to overcharge (over 4,2 volt ) !
- Protect to overdischarge ( down 3,5 volt ) !
- and MOST IMPORTANT charge this 2 elements in BALANCE MODE
if the battery NOT put out any voltage is probably the INTERNAL PCB protection
is an Seiko Sii integrated circuit smd at 8 pin and 2 mosfet ...is dead , but the
battery are ok !
before you put your battery pack in the rubbisch , open and control this !!!
REMEBER that if you have problems inside the TH-F6 kenwood there are 2
smd fuse .... i indicated this fuse in another PDF article in my web site !
best 73 de IW2BSF - Rudy