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Guys with battery relocations.. any advice?
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<blockquote data-quote="OptimaJim" data-source="post: 9182588" data-attributes="member: 96558"><p>Quicktime GT, the voltage at the battery when idling and the 12.8 volts when the car is off are crude indicators that the wire gauge is ok for your relocation. </p><p></p><p>Optima batteries do not hold a memory of previous charging levels and unless there has been sulfation of the battery plates, they should fully-recharge. However, their low internal resistance will allow them to be discharged more deeply than traditional flooded batteries. Many standard battery chargers will not recharge any battery discharged below 10.5 volts and most flooded batteries discharged below 10.5 volts are unrecoverable. The upside for owners of AGM-style batteries, like Optimas, is that they can recover from being deeply-discharged below 10.5 volts with a standard charger through parallel charging.</p><p></p><p>To charge a deeply-discharged Optima with a regular charger, you can wire a second fully-charged automotive battery (12V+) to the discharged Optima in parallel (+ to + and – to –). Then hook up the charger to either battery, setting the charger at 10 amps for 2 hours and monitoring it frequently. When the discharged Optima reaches 10.5 volts or more, remove the second battery and continue charging the Optima until fully charged. </p><p></p><p>Typically we recommend charging at a relatively low current, such as 2 amps, but when a battery has been deeply discharged, some sulfation of the battery plates may have occurred. However, if you charge at 10 amps, the higher current will help to break up sulfation that may have occurred.</p><p></p><p>If you have an automatic charger, let it run until the charger indicates charging is complete. If you have a manual charger, estimate charging time by multiplying the capacity (amp hours or Ah) of the battery by 1.2 for a rough estimate of charging time in hours.</p><p></p><p>In most cases, these steps will recover an Optima battery. It’s ok for the Optima battery to get slightly warm during the charging process, but hot to the touch or hissing from the battery indicates a short and the process should be discontinued. If the battery reaches a full state of charge, but does not maintain voltage at or near its fully-charged state (disconnected from a vehicle) for 12-24 hours afterwards, the battery is probably not recoverable.</p><p></p><p>If you’d rather not deal with that, you can always take your battery to a professional battery specialist, like Interstate, who knows AGM technology. Most of them are willing to provide “charge and check” procedures for a small fee and many will provide the service for free. If you have any other questions about charging and proper battery maintenance, you can check out this link- <a href="http://optimabatteries.com/product_support/charging.php" target="_blank">Optima Battery Charging - AGM Battery Charging</a> or just ask.</p><p></p><p>Jim McIlvaine</p><p>eCare Manager, OPTIMA Batteries, Inc.</p></blockquote><p></p>
[QUOTE="OptimaJim, post: 9182588, member: 96558"] Quicktime GT, the voltage at the battery when idling and the 12.8 volts when the car is off are crude indicators that the wire gauge is ok for your relocation. Optima batteries do not hold a memory of previous charging levels and unless there has been sulfation of the battery plates, they should fully-recharge. However, their low internal resistance will allow them to be discharged more deeply than traditional flooded batteries. Many standard battery chargers will not recharge any battery discharged below 10.5 volts and most flooded batteries discharged below 10.5 volts are unrecoverable. The upside for owners of AGM-style batteries, like Optimas, is that they can recover from being deeply-discharged below 10.5 volts with a standard charger through parallel charging. To charge a deeply-discharged Optima with a regular charger, you can wire a second fully-charged automotive battery (12V+) to the discharged Optima in parallel (+ to + and – to –). Then hook up the charger to either battery, setting the charger at 10 amps for 2 hours and monitoring it frequently. When the discharged Optima reaches 10.5 volts or more, remove the second battery and continue charging the Optima until fully charged. Typically we recommend charging at a relatively low current, such as 2 amps, but when a battery has been deeply discharged, some sulfation of the battery plates may have occurred. However, if you charge at 10 amps, the higher current will help to break up sulfation that may have occurred. If you have an automatic charger, let it run until the charger indicates charging is complete. If you have a manual charger, estimate charging time by multiplying the capacity (amp hours or Ah) of the battery by 1.2 for a rough estimate of charging time in hours. In most cases, these steps will recover an Optima battery. It’s ok for the Optima battery to get slightly warm during the charging process, but hot to the touch or hissing from the battery indicates a short and the process should be discontinued. If the battery reaches a full state of charge, but does not maintain voltage at or near its fully-charged state (disconnected from a vehicle) for 12-24 hours afterwards, the battery is probably not recoverable. If you’d rather not deal with that, you can always take your battery to a professional battery specialist, like Interstate, who knows AGM technology. Most of them are willing to provide “charge and check” procedures for a small fee and many will provide the service for free. If you have any other questions about charging and proper battery maintenance, you can check out this link- [url=http://optimabatteries.com/product_support/charging.php]Optima Battery Charging - AGM Battery Charging[/url] or just ask. Jim McIlvaine eCare Manager, OPTIMA Batteries, Inc. [/QUOTE]
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Guys with battery relocations.. any advice?
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