Difference in a trickle charger and a maintainer. A trickle charger, unless it is fully automatic, will over charge if left on too long. A maintainer is only intended for keeping a fully charged battery fully charged under normal storage conditions.
But if they are discharging under normal use, something is wrong. Either there is a problem with the charging system, there is an external drain, or a bad battery.
If one battery is bad, it will drain both.
Unless this is something that sits for months at a time, trying to recharge them is just a temporary fix. And if one is bad, always replace them as a pair. Then save the good one to use on something else with a single battery.
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Today's Featured Article - Upgrading an Oliver Super 55 Electrical System - by Dennis Hawkins. My old Oliver Super 55 has been just sitting and rusting for several years now. I really hate to see a good tractor being treated that way, but not being able to start it without a 30 minute point filing ritual every time contributed to its demise. If it would just start when I turn the key, then I would use it more often. In addition to a bad case of old age, most of the tractor's original electrical system was simply too unreliable to keep. The main focus of this page is to show how I upgr
... [Read Article]
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