Having a strange interaction/bug with the shields, perhaps as a bug with the new shield linkers.
Sometimes the arc shields (the non-360 degree shields) will refuse to fully charge -- even when there is more than enough power to be fed into them, and nearby shield linkers are fully charged. I suspect it may be that the shield linkers are actually draining power from the arc shields to power the other linked shielding units.
Here in this example, you can see that the front shields are not totally charged. Any additional power fed will immediately be drained, keeping the shields permanently at about 75% charge. This effect only seems to happen if the shields are lowered in combat and then are raised again, and if the shield linkers are disabled, the shields seem to be able to be recharged again.
It's a very odd occurence, and I'm not sure if it is a bug or me just improperly using and/or not understanding the shield linkers. Even more interestingly, this does not occur with the phase shields.
Thanks in advance!