Description
The US Battery US AGM 305 is a big-capacity 6V AGM battery built in U.S. Battery's Group 902 case, rated at 340Ah for equipment that needs serious runtime and won't tolerate downtime for maintenance. It's a strong fit for AWP equipment, industrial cleaning machines, and renewable energy systems running series 6V battery banks.
At 340Ah this is the largest single 6V case in U.S. Battery's AGM lineup — a genuine alternative to stepping up to an 8D battery when you need serious runtime but want to keep working in 6V increments for a series-connected bank. That size does come with real weight: at 106 lbs, this isn't a battery you swap solo, so plan for two people or a lift when it's time to service the bank.
Why choose the US AGM 305
- 340Ah — the largest single 6V case in U.S. Battery's AGM lineup
- An alternative to 8D capacity while staying in 6V series-bank increments
- Dual terminal configuration for flexible wiring into series packs
- Sealed, non-spillable AGM chemistry — zero maintenance, zero leak risk
Specifications
| Model | US AGM 305 |
| Voltage | 6V |
| Capacity (20HR) | 340Ah |
| Capacity (5HR) | 306Ah |
| Reserve Capacity @75A | 240 min |
| Reserve Capacity @56A | 330 min |
| Reserve Capacity @25A | 790 min |
| Length | 11.61in (295mm) |
| Width | 7in (178mm) |
| Height | 14.3in (364mm) |
| Weight | 105.8 lbs (48kg) |
| Terminal | Dual |
| Case Material | Polypropylene, Heat Sealed |
| Battery Type | Sealed AGM, Valve-Regulated |
Backed by U.S. Battery's manufacturer warranty. Freight delivery likely applies at this weight — reach out for a shipping estimate before ordering.