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I'm thinking of using the BQ2971x for battery protection.

http://www.ti.com/lit/ds/symlink/bq2971.pdf

One thing that anoys me is that most batterys (18650 Li-ions) usually have a lot higher discharge than charge current.

So using one like this: Would imply that it has to be configured for maximum charge due to that the charge current is alot lower than what the discharged is allowed to be.

enter image description here

To go around the problem I've this idea of using two BQ2971x instead, like this: By that way I can configure the discharge and charge current separetly by selecting different mosfets or variants of the BQ271x.

enter image description here

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  • \$\begingroup\$ What's your question, exactly? \$\endgroup\$ – Finbarr Apr 26 '19 at 15:04
  • \$\begingroup\$ @Finbarr if there might be any problems I haven't thought of \$\endgroup\$ – Anton Ingemarson Apr 29 '19 at 8:25
  • \$\begingroup\$ I've no idea what you're trying to do here. As with 99% of questions involving charging of batteries, the correct solution is to use a proper charger. \$\endgroup\$ – Finbarr Apr 29 '19 at 9:12

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