My old Intel MBP came with an 87W USB-C adapter, and I know I can fast-charge using a USB-C cable, but does fast-charging via MagSafe work with a power supply that isn't in Apple's list? It's not necessarily just a question of watts, because I can't find any documentation saying whether the MagSafe fast charging requires AVS or some other later feature (100mV voltage steps instead of the old fixed voltages, which is all the 87W charger supports).
The reason I care is that I'm just about to order a new MBA and the two power adapters are the same price here. If I can use my existing 87W charger for fast charging via MagSafe, the 2x35W charger might be useful to have, but otherwise I'll get the 70W charger for convenience when travelling.
The reason I care is that I'm just about to order a new MBA and the two power adapters are the same price here. If I can use my existing 87W charger for fast charging via MagSafe, the 2x35W charger might be useful to have, but otherwise I'll get the 70W charger for convenience when travelling.
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