Musicmanager
Well-Known Member
Hello Guys
I need some advice and I'm hoping there's someone around with experience of 18650 Li-Ion Batteries.
I've got a project on the go for my Grandson which involves 5 separate units each containing an Arduino Nano and an SG90 Servo motor both of which work best at 5vdc
I'm planning on using a single 18650 Li-Ion Rechargeable Battery in each unit with an MC34063 Boost Converter to get from 3.7 to 5vdc and a TP 4056 BMS module for charging with a DPDT switch between the two.
I've tried all this out in prototype and it all seems to work perfectly well, but .. .. .. .. . I've never done anything with this type of battery before and I'm a bit wary of the usual MM type errors that pervade my work and I don't think it will go down too well with the Senior Manager I married if I bump off one or more of the grandkids.
I'd appreciate a perusal of the attached schematic for any errors, glaring or otherwise.
The batteries are marked ' Ultrafire TR 18650 9900mAh 3.7v ' ;
I appreciate the decoupling caps are missing on the schematic, they will be present on the assembly.
Many thanks
S
I need some advice and I'm hoping there's someone around with experience of 18650 Li-Ion Batteries.
I've got a project on the go for my Grandson which involves 5 separate units each containing an Arduino Nano and an SG90 Servo motor both of which work best at 5vdc
I'm planning on using a single 18650 Li-Ion Rechargeable Battery in each unit with an MC34063 Boost Converter to get from 3.7 to 5vdc and a TP 4056 BMS module for charging with a DPDT switch between the two.
I've tried all this out in prototype and it all seems to work perfectly well, but .. .. .. .. . I've never done anything with this type of battery before and I'm a bit wary of the usual MM type errors that pervade my work and I don't think it will go down too well with the Senior Manager I married if I bump off one or more of the grandkids.
I'd appreciate a perusal of the attached schematic for any errors, glaring or otherwise.
The batteries are marked ' Ultrafire TR 18650 9900mAh 3.7v ' ;
I appreciate the decoupling caps are missing on the schematic, they will be present on the assembly.
Many thanks
S