AGM Battery Longevity
I have had my Lifeline AGM batteries for 7 years. For 2 of those years there were a lot of cycles because I was a fulltimer. I am getting ready to set out on a trip of several months and wonder if I...
Forum Discussion
SPECIFICATIONS
VOLTS 12
LENGTH IN (MM)
13.46 (341.9)
WIDTH IN (MM)
-----6.77 (172)
HEIGHT IN (MM)
-----11.95 (303.5)
WEIGHT LB (KG)
-------96 (43.5)
COLD CRANKING AMPS
68F -1000
32F-------850
0F----------700
RATED CAP. AMPS HOURS @ 20HR RATE
150
MINUTES OF DISCHARGE
25 AMPS ---315
15 AMPS ----555
8 AMPS ------1120
Lifeline GPL-30HT
I want a battery with no easily attainable amperage limit and whose charging instructions say 'mo is Bettah.'
page 19Lifeline GPL-30HT specs
I've got about 520 Deep cycles and several hundred shallow cycles on a Northstar AGM purchased in Nov '13. Still impressed with voltage held under load, and engine cranking ability when depleted well below 50%. Requires high amp recharging from a well depleted state to remain impressive, along with the full recharges based on tapering amperage at absorption voltage.
I'd not replace well treated 7 year old Lifelines unless their voltage held under load was not impressive, and they did not respond to the conditioning procedure described on page 20 in the tech manual PDF linked above.
I'd start the conditioning after quickly draining the battery to well below 50% SOC, then recharging properly, seeking, at a high amp rate, and then Holding proper temperature compensated absorption voltage until amps taper to 0.5% of capacity.
VOLTS 12
LENGTH IN (MM)
13.46 (341.9)
WIDTH IN (MM)
-----6.77 (172)
HEIGHT IN (MM)
-----11.95 (303.5)
WEIGHT LB (KG)
-------96 (43.5)
COLD CRANKING AMPS
68F -1000
32F-------850
0F----------700
RATED CAP. AMPS HOURS @ 20HR RATE
150
MINUTES OF DISCHARGE
25 AMPS ---315
15 AMPS ----555
8 AMPS ------1120
Lifeline GPL-30HT
I want a battery with no easily attainable amperage limit and whose charging instructions say 'mo is Bettah.'
page 19Lifeline GPL-30HT specs
I've got about 520 Deep cycles and several hundred shallow cycles on a Northstar AGM purchased in Nov '13. Still impressed with voltage held under load, and engine cranking ability when depleted well below 50%. Requires high amp recharging from a well depleted state to remain impressive, along with the full recharges based on tapering amperage at absorption voltage.
I'd not replace well treated 7 year old Lifelines unless their voltage held under load was not impressive, and they did not respond to the conditioning procedure described on page 20 in the tech manual PDF linked above.
I'd start the conditioning after quickly draining the battery to well below 50% SOC, then recharging properly, seeking, at a high amp rate, and then Holding proper temperature compensated absorption voltage until amps taper to 0.5% of capacity.
