Hi buddies, I need help understanding some basic concepts about Li-Ion batteries.
I´ve been reading about this because I need to connect 2 single cells in parallel.
I understand the folloging:
And if I connect for example two or more cells in parallel.
1. In parallel, rated voltage is the same but the current capacity is increased so, can I use the MC34673 that is for a single cell?
2. Can I connect in parallel two single cells protected with the DW01A, and then to the charger MC34673?
And what about in series
3. Can I connect in series single protected cells with the DW01A and then to a charger? in this case using this guy LT3652
Ty
I´ve been reading about this because I need to connect 2 single cells in parallel.
I understand the folloging:
- Li-Ion/Polymer batteries needs a special circuit to protect them from overvoltage (when charger), undervoltage (when discharge) and short circuit current. For example this I.C DW01A perform this task (only can protect a single cell... this IC doesn't protect a cell battery)
- We can charge a single cell for example with this guy MC34673 and this chip only charge a single cell and doesn't protect the battery.
- So I can derive that for a battery powered system (single cell) I need a battery protected and a battery charger IC.
And if I connect for example two or more cells in parallel.
1. In parallel, rated voltage is the same but the current capacity is increased so, can I use the MC34673 that is for a single cell?
2. Can I connect in parallel two single cells protected with the DW01A, and then to the charger MC34673?
And what about in series
3. Can I connect in series single protected cells with the DW01A and then to a charger? in this case using this guy LT3652
Ty