Lifeline GPL-6CT 6V 300 Ah AGM Deep Cycle Battery
- Brand:
- Lifeline
- Part no:
- GPL-6CT
Image: Fisheries Supply
Where to buy
Specifications
- Chemistry
- AGM
- Role
- Deep cycle
- Voltage
- 6 V
- Dimensions (L x W x H)
- 10.22"L x 7.06"W x 12.65"H
- Terminals
- M8 (Copper Alloy)
- Capacity
- 300 Ah
- Reserve capacity
- 692 min
- Mounting orientation
- Any position
- Warranty
- 5 year
The GPL-6CT is a 6 volt AGM deep cycle battery rated at 300 Ah and weighing 82 lb. It is a sealed design that needs no watering and can be installed in any position. It measures 10.22"L x 7.06"W x 12.65"H and self-discharges at less than 3% per month at 77°F. The maker backs it with a 5 year warranty and says it should not be mixed with old batteries in a bank.
Our take
At 82 lb for 300 Ah, this is a heavy single battery to lift into place, and its 10.22" x 7.06" x 12.65" footprint needs checking against your box. The sealed AGM build means no watering and any mounting position.
From our buying guide
A starting battery delivers a short burst of strong power, a deep-cycle battery a low, steady level for longer, and a dual-purpose battery a balance of the two. Buy for the job it will do.
Check before you buy:
- You've measured the tray against the maker's real dimensions, since a BCI group gives maximum sizes and some batteries sold as a drop-in run longer.
- You're comparing the same rating. Cold cranking amps are tested at 0°F and cranking amps at 32°F, so the second number is higher.
- If it's lithium, the maker says whether it may start an engine, and NMMA advises contacting your boat's manufacturer or a certified technician before replacing lead-acid.