| Wikiwide | What kind of Li-Ion battery has nominal voltage of 3.8V and charging voltage of 4.35V? Don't normal batteries have 3.7V and 4.2V? | 13:21 |
|---|---|---|
| Wikiwide | Is it safe to charge 3.8V battery with a charger intended for ordinary 3.7V batteries? | 13:23 |
| bencoh | Wikiwide: actually at $job we recently moved from 4.2V batteries to 4.35V batteries | 14:22 |
| bencoh | (unfortunately I have no idea in which way they differs) | 14:22 |
| bencoh | (and I don't think our hardware guys know either) | 14:22 |
| Wikiwide | Wow! So, can they be charged by old chargers? | 14:22 |
| bencoh | our "old charger" (read: charger chip, like the bq24250 in n900) can just be configured to charge at a different voltage | 14:23 |
| bencoh | (just like the one in the droid4, btw) | 14:23 |
| bencoh | except ours properly detects end-of-charge by measuring battery current | 14:24 |
| bencoh | what's more, Vsys and battery aren't directly connected. Our charger has 3 rails: input (usb/vbus), output (Vsys), and input/output (battery) | 14:25 |
| bencoh | that means current to/from battery is different than system current | 14:25 |
| Wikiwide | Huh, alright. Makes sense. | 14:26 |
| bencoh | nowadays in most phones (at least in most if not all samsung phones, at least), battery is directly connected to Vsys | 14:26 |
| bencoh | and charger basically supplies current to the {system,battery} rail | 14:26 |
| Wikiwide | But no idea how to fix charging port of Samsung Galaxy J3. Or how to charge its battery. | 14:26 |
| Wikiwide | Battery and Vsys have to be different if one is to use phone with charger without battery, right? | 14:30 |
Generated by irclog2html.py 2.17.0 by Marius Gedminas - find it at https://mg.pov.lt/irclog2html/!