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electrical:12v:lvd [2018/06/23 13:49]
frater_secessus [common LVD setpoints]
electrical:12v:lvd [2018/06/23 13:51]
frater_secessus [common LVD setpoints]
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 ===== common LVD setpoints ===== ===== common LVD setpoints =====
  
-Lead-acid deep cycle batteries ​last the longest with best capacity if they are never cycled more than 50% [[electrical:​depth_of_discharge|Depth of Discharge]]((and fully charged afterwards)). ​ That point is somewhere around 12.20v when rested or very lightly loaded.  ​ +Lead-acid deep cycle batteries are typically discharged ​50% [[electrical:​depth_of_discharge|Depth of Discharge]] ​or less ((and fully charged afterwards)). ​ That point is somewhere around 12.20v when rested or very lightly loaded.  ​
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 This following chart((http://​www.trojanbattery.com/​pdf/​GEL_Trojan_ProductLineSheet.pdf)) shows DoD vs expected duty cycles. ​ In an offgrid scenario we will assume the bank is cycled every night. ​ If the bank is drained to the usual 50% DoD the bank((under lab conditions)) is predicted to last 1000 cycles, or about 3 years. ​ If the bank cycle is shallower to 20% DoD the bank is expected to last 2500 cycles, or about 7.5 years. ​ If the bank is deeply cycled to 80% DoD the bank is expected to last 500 cycles, or about 1.5 years. This following chart((http://​www.trojanbattery.com/​pdf/​GEL_Trojan_ProductLineSheet.pdf)) shows DoD vs expected duty cycles. ​ In an offgrid scenario we will assume the bank is cycled every night. ​ If the bank is drained to the usual 50% DoD the bank((under lab conditions)) is predicted to last 1000 cycles, or about 3 years. ​ If the bank cycle is shallower to 20% DoD the bank is expected to last 2500 cycles, or about 7.5 years. ​ If the bank is deeply cycled to 80% DoD the bank is expected to last 500 cycles, or about 1.5 years.
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 |  30|  11.80| ​ 10.62| ​ 9.44| |  30|  11.80| ​ 10.62| ​ 9.44|
 |  20|  11.65| ​ 10.49| ​ 9.32| |  20|  11.65| ​ 10.49| ​ 9.32|
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 +Observe and adjust based on your experience with your own system.  ​
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electrical/12v/lvd.txt · Last modified: 2018/06/23 13:51 by frater_secessus