Lifeline GPL-27T Battery - Voltage: 12V - Capacity: 100 Ah - Dimensions: 12.01" x 6.6" x 9.25" - Weight: 65 lb / 29.5 kg - Deep Cycle Marine/RV Battery in a group 27 sizing. This battery will replace and type or group 27, with an identically sized battery. New LIfeline Battery Part Number:The GPL-27, GPL 27, GPL-27T, and the GPL 27T have all been phased out in lieu of the new part number, GPL-27T. The GPL-27T has a dual use terminal system which is compliant for both automotive, and ring terminal connections. Replaces: GPL 27, GPL 27MT, all Group 27 Deep Cycle Flooded Batteries.