Here is my two Lifeline GPL-4CT's with my Magnum 3012 that can charge at 125 amps.
Ran the batteries down to 50% SOC then let it rip:
Time Inverter-V BMK-V BMK-Ah BMK-SOC Inverter-A BMK-A BMK-T
9:50am 12.5v 12.70v -5Ah 97%
7:35pm 12.2v 12.32v -113Ah 49%
7:37pm 13.5v 13.44v -110Ah 50% 125A 104.0A 77F Bulk
7:52pm 13.8v 13.79v -87Ah 60% 125A 105.6A 82F
8:00pm 14.1v 14.08v -73Ah 67% 125A 105.2A 86F Absorb
8:04pm 14.1v 14.14v -66Ah 70% 111A 95.8A 88F
8:12pm 14.1v 14.18v -55Ah 75% 85A 77.2A 88F
8:22pm 14.1v 14.20v -44Ah 80% 70A 60.8A 88F
8:34pm 14.1v 14.22v -34Ah 85% 51A 45.8A 86F
9:06pm 14.2v 14.32v -15Ah 93% 30A 25.8A 84F
9:25pm 14.2v 14.36v -8Ah 96% 20A 17.2A 82F
9:45pm 14.2v 14.34v -4Ah 98% 15A 11.2A 82F
10:23pm Float
As you can see the two Lifelines will accept 125 amps for about a half hour going from 50 to 70% SOC, they
will accept 50 amps up to 85%. 98% charge in two hours, full float transition in 3 hours.