Galaxy Z Flip 4 battery certification all but confirms a fairly big upgrade

It seems the Galaxy Z Flip 4 will be shipping with a bigger battery, and a new leak all but confirms it’s going to be a bigger upgrade than some earlier leaks suggested. Recapping what we’ve seen to date, one of the first few leaks of the Galaxy Z Flip 4 pinpointed a moderate battery upgrade of just a few mAh. The Galaxy Z Flip 3, for reference, shipped with a 3,300 mAh battery which we found…
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