Dasduino CONNECTPLUS battery voltage and charging via JST

TECHNICAL SUPPORT NULA Development Boards
1

Customer:

I’m using the Dasduino CONNECTPLUS (ESP32) for a wireless project and have several questions about power supply.

  1. What is the intended voltage for a battery connected via the JST connector?

  2. Does the battery charge when the controller is connected via cable to a computer or a charger similar to those used for charging mobile phones?

  3. Is there a way to check the battery status when connected to the JST connector?

Original message (Croatian)

Koristim vaš Dasduino CONNECTPLUS (ESP32) za wireless projekt te imam par pitanja vezanih uz napajanje.

  1. Koliki je predviđeni napon za bateriju koja bi se spojila JST priključnicom?

  2. Puni li se baterija u slučaju da se kontroler spoji kablom na računalo ili punjač sličan onome za puniti mobitel?

  3. Može li se kako saznati stanje baterije ako je spojena na JST konektor?

Originally submitted via email support on 31 January 2024. Migrated to the forum for community visibility.

2

Soldered Support:

These batteries are around 3.7V, with the voltage being slightly higher when fully charged and lower when discharged (Dasduino compensates for this) and can operate normally - the JST connector is precisely for such batteries.

Yes, when connected this way the battery charges.

Unfortunately we don’t have a simple way to read the battery voltage (which is an indicator of how charged it is) - you can create a voltage divider. Here’s a great article about this: Monitoring Battery Voltage | Details | Hackaday.io

Original message (Croatian)

šaljem odgovore:

Te baterije su oko 3.7V, s tim da im je napon malo veći dok su pune a manji kad se isprazne (Dasduino kompenzira za to) i može raditi normalno - JST konektor je upravo za takve baterije. Evo link na našem web shopu za baterije, sve ove su kompatibilne s Dasduinom: Energija i Baterije | Li-Ion, Rješenja za Punjenje i Energiju – Soldered Electronics Da, u tom trenutku sa baterija puni Na žalost nemamo jednostavan način kako čitati napon s baterije (to je indikator koliko je napunjena) - možeš napraviti voltage divider, evo super članak o ovome: Monitoring Battery Voltage | Details | Hackaday.io
Nadam se da je ovo informativno i da će ti pomoći u projektu.