6V Group L16 AGM Deep Cycle Battery - 400 Ah, 119 lb

LifeLine AGM deep cycle batteries have developed a well-deserved reputation for heavy-duty, high-quality construction and the ability to be discharged again and again without decreasing their amp-hour rating.
This 6 volt L16 battery is designed for deep cycle use in marine and RV applications.

• Faster recharge, no current limitations with voltage regulated recharging
• Full recharge after 30 days storage in a full discharge condition (77°F rating)
• Less than 3% per month self-discharge at 77°F (25°C); less at lower temperatures
• Sealed construction with absorbed electrolyte - no shipment restrictions, submersible without damage; install in any position; no need for adding water
• Cell safety vent valves - pressure regulated, non-removable
• Rugged, non-marring polypropylene (copolymer) case/cover
• Safe – even during severe overcharge the Lifeline AGM battery produces less than 2% hydrogen gas (4.1% is required for flammability in air)
• Overall dimensions (including terminals): 11.7"L x 7"W x 15.75"H
• UL listed
• Made in the USA


Warning – Do not mix new and old batteries in a battery bank. Doing so will void the new battery's warranty, and it will not be returnable to Fisheries for a replacement or refund.

As batteries age they develop a resistance to charging, making them take longer to recharge. When new and old batteries are mixed, the increased charging required of the older batteries becomes the default regimen for the entire bank.
The result is that the newer batteries in the bank can be over-charged on a regular basis. This will damage the newer batteries and void their warranty.

Batteries in a deep cycle battery bank typically age (and begin to fail) as a group. If one of the batteries fails, the others are probably not be far behind. Don’t be tempted to replace only the failed battery.
Best practice is to always replace all the batteries in a bank at the same time.