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


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.

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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

  • \$\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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