The 8D-AGM is the largest-format battery in Trojan's standard AGM line by a wide margin — 20.47" long and 161 lbs, versus the T1275-AES's 105 lbs or the J185-AES's 122 lbs. It's a dual-purpose design, meaning it's built to deliver both cranking amps for starting and sustained capacity for auxiliary loads, which sets it apart from the pure deep-cycle orientation of the AES series.At 230Ah (5-hr) / 254Ah (100-hr) with 460 minutes of reserve at 25 amps, it outcapacities every other AGM product in this catalog on raw amp-hours. The ABS case is rated specifically for abrasion and heat resistance, and self-discharge is held under 3% monthly — relevant for equipment that sits between shifts or seasonal use. Plastic carry handles are a practical touch given the weight; this is not a single-person installation. 12V, 230Ah (5-hr rate) / 254Ah (100-hr rate) Dimensions: 20.47" L x 10.64" W x 9.08" H Weight: 161 lbs Terminal: automotive post & stud (DT) BCI Group 8D; sealed AGM, dual-purpose, non-spillable