Trojan T-105 6V 225Ah Flooded Deep Cycle Battery

The T-105 is the reference point for six-volt deep-cycle batteries: 225 Ah at the 20-hour rate in a 62 lb case, with the numbers every other GC2 model gets measured against. Trojan's own application list for it runs from floor cleaning machines and aerial work platforms to golf cars, marine, RV, solar and material handling, which is why it shows up in so many different battery trays.

Within the family it sits in the middle. The T-125 adds 15 Ah for about 4 lb more, and the T-605 gives up 15 Ah to save about 4 lb. This model uses HydroLink-compatible bayonet caps, so you can add single-point watering and skip the cell-by-cell top-offs, but it is still a flooded battery: expect periodic distilled-water checks and ventilated charging. If you would rather never open a cap, look at the AES AGM version listed separately.

Count the batteries in your existing bank before ordering and replace the whole string together, so the new units are not dragged down by old ones. Wire sets of them in series to build your pack voltage (four for 24 V, six for 36 V), and confirm that the tray length, width and height match the figures below, since heights shift slightly with terminal choice.

Specifications