I ask this because last year i purchased an AGM 12v 70ah deep cycle battery to use as a power source for magnetic relays (tattoo machines) that usually operate on 5-7v and a 25 watt 35ohm rheostat to control the current. I kept the battery in a plastic housing with the top off so it never touched the floor and I don’t think the battery ever really got too low, yet I have maybe charged it 5-8 times since last summer with a ctek MXS .5.
Last year the relays would kick on and run even in low current, albeit not very strong. Now in med to low current i see the springs look like they are going to activate. They move just a hair but never kick on unless i give them a nudge or turn the rheostat up very high. Even after this they are easy to stop with my finger. There seems to be a lack of strength or resistance somewhere.
I have tried:
• Reconditioning the battery in large battery, AGM, recondition mode on my CTEK.
•Checking the voltage with a mm through the rheostat, it was fine.
•Replacing mildly corroded clamps from rheostat housing to battery.
•Purchased new 35 ohm 50w rheostat and replaced the old one correctly.
•Sanded some very minimal oxidation from terminals.
All this and I’m having the same problem. I am totally confounded. I think I may have to return the battery. Or if anyone can help me solve this issue I’ll make you a small A5 watercolor painting of an electric tiger face with lightning and mail it to you. Thanks for taking the time to read this.
Last year the relays would kick on and run even in low current, albeit not very strong. Now in med to low current i see the springs look like they are going to activate. They move just a hair but never kick on unless i give them a nudge or turn the rheostat up very high. Even after this they are easy to stop with my finger. There seems to be a lack of strength or resistance somewhere.
I have tried:
• Reconditioning the battery in large battery, AGM, recondition mode on my CTEK.
•Checking the voltage with a mm through the rheostat, it was fine.
•Replacing mildly corroded clamps from rheostat housing to battery.
•Purchased new 35 ohm 50w rheostat and replaced the old one correctly.
•Sanded some very minimal oxidation from terminals.
All this and I’m having the same problem. I am totally confounded. I think I may have to return the battery. Or if anyone can help me solve this issue I’ll make you a small A5 watercolor painting of an electric tiger face with lightning and mail it to you. Thanks for taking the time to read this.