GregH
21 January 2020 05:01
#1
Hi Core,
I recently purchased the 20,000mAh Battery (CE06799) to use with the PiSupply PiJuice Zero.
What battery profile settings should I use with this pack? They should be something like:
Capacity: 5000 mAh,
Charge current: 2500 mA,
Termination current: 100 mA,
Regulation voltage: 4180 mV,
Cut-off voltage: 3000 mV,
Cold temperature: 1 °C,
Cool temperature: 2 °C,
Warm temperature: 45 °C,
Hot temperature: 50 °C,
NTC B constant: 3380 K,
NTC resistance 10000 Ω.
(These copied from the PiJuice repo for the PiSupply 5000mAh pack)
# Hardware
The above images of the PiJuice PCB are used in the following descriptions to highlight some of the inputs / outputs and other useful hardware information.
## Switches
On board the PiJuice, highlighted in green in the above overview images, there are momentary switches and one DIP switch(PiJuice HAT). Please note that SW1 and J5 have the same function...J5 has been provided so that a separate tactile pushbutton can be used for ease of use for example on a custom case (similar to a reset or power button on a normal computer).
The following lists the default function/configuration (these can be easily overwritten in the software GUI/JSON file - see below):
### Buttons
#### HAT
* **SW1/J5** is power button by default:
* Single press to power on (release in less than 800 ms)
* Long press of at least 10 seconds to halt
* Long press of at least 20 seconds to cut power
show original
Many thanks.
1 Like
Bryce
30 January 2020 01:36
#2
Hey Greg,
After reviewing the recommended settings on this site it appears all that you’d have to change is the Capacity and Charge Current values to that which would be suitable for your particular battery, Pi Juice will likely have more specifications about the battery to determine the Charge and Termination current but they should be around the 20000mAh and 10000mA range if the 1:2 ratio is maintained (10000mA will probably be too high as I believe the highest value will be 2500mA).
# Hardware
The above images of the PiJuice PCB are used in the following descriptions to highlight some of the inputs / outputs and other useful hardware information.
## Switches
On board the PiJuice, highlighted in green in the above overview images, there are momentary switches and one DIP switch(PiJuice HAT). Please note that SW1 and J5 have the same function...J5 has been provided so that a separate tactile pushbutton can be used for ease of use for example on a custom case (similar to a reset or power button on a normal computer).
The following lists the default function/configuration (these can be easily overwritten in the software GUI/JSON file - see below):
### Buttons
#### HAT
* **SW1/J5** is power button by default:
* Single press to power on (release in less than 800 ms)
* Long press of at least 10 seconds to halt
* Long press of at least 20 seconds to cut power
show original
Bryce
1 Like
jh0
14 July 2021 11:15
#3
So will these 3.7v batteries only charge at higher voltages e.g 4180 mV?
1 Like
Very understandable and accessible. Thanks for the clarifications. I am not very well versed in physics to make such calculations, so I prefer to rely on the opinion of more experienced people.
1 Like
