So instead I created an "Average" battery from Trojan, Concorde, Odyssey and Rolls AGM products (these were the only ones I could find with detailed DoD data). All should be maintained at a lower “float” voltage (13.1V typical). Good luck all and if in doubt keep records of what's happening, how you think your batteries are, and how quickly they discharge when you load them up, ESPECIALLY after sunset. BU-104a: Comparing the Battery with Other Power Sources, BU-104c: The Octagon Battery – What makes a Battery a Battery, BU-105: Battery Definitions and what they mean, BU-107: Comparison Table of Secondary Batteries. I understand the AGM batteries do not need to be vented as flooded batteries need to be. Charge immediately if your battery gets this low.

Then, carefully disconnect the AGM battery - you don’t have to remove it phisically from the car. only in serious overcharging situations do they vent some gas. 100% Satisfied or your money back! 0000001113 00000 n What should be the best charging routine for the 24V (2x12v)/28AH battery of my wheelchair ? I have a number of 12V AGM batteries that I have fully charged and the resting voltage (measured several days after charging was completed with no discharge) ranged from 12.96 to 13.3V.
We are considering moving up to a G31 AGM that has 100 Ah, 220 reserve and 1370 Crank amps. Battery Purpose:Starting Lighting Instrumentation AGM, GEL and wet cells have different charge requirements, and not all chargers support all models for a proper charge. Only use a 20 amp smart charger on the starter batteries on the high end of the scale – and use only with great caution. Never flatten your battery, and don’t regularly take out more than 40%. How do I recharge an AGM, 12vdc… I am using in on a Motor, it draws 3amps. Their performance is similar to standard “Access” or “Flooded” lead-acid batteries however they don’t need topping up with water as they use a re-combinant agent inside to turn the normal gasses produced under charging conditions back to water.

However, all communication must be done with the use of appropriate language and the avoidance of spam and discrimination. Well, you see, I live in Australia, it’s usually a heck of a lot hotter than 25c here in summer. Most are changed or updated later when it’s reversed engineered to figure out why they were wrong on paper.. The only advantage to AGM batteries is that the seller can claim high Cold Cranking Amperage, which in the real world is pretty much meaningless but those big numbers appeal to the buying public. 0000004157 00000 n Voltage (V): 12 Volt It must be at "rest" for some time to do that. It is the only device I know of that will maintain even voltage across batteries setup in a bank. Many newer battery chargers, like the OPTIMA Chargers Digital 1200 12V Performance Battery Charger and Maintainer, have microprocessors that collect information from the battery and adjust the current and voltage accordingly. My experience seems to be quite different than in most of the comments above. The high initial cost has been paid back many times over due to their long and dependable life. The Battery Tender Model #021-0123 instructions and lights say 1. 2) Replacement battery: They are not cheap and I have read you should not use a new battery with an old set; is that correct? I just want to say I was looking for some info on AGM batteries and came across this site and these discussion. Chuck W… the AGM Odyssey will produce more cranking amps because it is a thin plate battery… the more plates, the more surface area the more cranking amps for a short period. The wet ones needed replacing this year. We recommend CTEK battery chargers for the task, or ensure that your installation has a smart charging system with a program for AGM's Flattening batteries Good call on your observations !! How can I estimate State of Health given that BMW recommends NOT disconnecting the battery? (07) 5515 5789, MELBOURNE Double these times if the battery is fully discharged. I have an AGM 200ah battery which i charge with an inverter from the mains. 1) Does this point to one of the cells of this battery being bad? The impurities in tap-water etc do not help the battery, but may be better than nothing in an emergency. I am using 4 U1 - SLA / AGM batteries for my electric scooter & they won’t last more than 1-1/2 years or so. To get the AH, I do: X / 19.25 = 1.2 ==> X = 1.2 * 19.25 ==> X = 23.1AH ==> 23.1 *2 = 46.2AH. I’m told gel batteries are? http://batteryuniversity.com/learn/article/absorbent_glass_mat_agm, Terry Scott


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