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dbt01 · 11th May 2017, 13:15

Don't throw the old one away though. Charge and leave it on trickle for a while for good measure. Check after 2 weeks. If its still over about 12.2, then you've got a good reserve battery, oldish though it may be. I have two such in the garage, trickled overnight once every month or so (or when I remember). Normally only takes 1/2 hour to show up "green" anyway. Trouble is neighbours know I've got 'em and several have had more use of them then I!

David

11th May 2017, 13:15	#2
dbt01 Retired Join Date: Jan 2009 Posts: 378 Thanks: 15 Thanked 106 Times in 85 Posts	Don't throw the old one away though. Charge and leave it on trickle for a while for good measure. Check after 2 weeks. If its still over about 12.2, then you've got a good reserve battery, oldish though it may be. I have two such in the garage, trickled overnight once every month or so (or when I remember). Normally only takes 1/2 hour to show up "green" anyway. Trouble is neighbours know I've got 'em and several have had more use of them then I! David Last edited by dbt01; 11th May 2017 at 13:17..