g2shuck Posted October 22, 2013 Report Share Posted October 22, 2013 This might seem like a stupid question, but I searched and could not find an answer. How do I figure out what charger I need to keep a battery bank maintained? I will be running 5 XS Power d3100s in my bank so 550 AH. My goal is to be able to charge them all at the same time without having to disconnect any of them. I am worried that the 550 AH might confuse a smart charger into thinking it is a fully charged single battery if that makes since. 2000 Toyota Camry With Sealed Off Trunk Sky High OFC Wiring DC Power 270 XP Alt AQ 2200 Sub Amp Two DC Level 4 m2 12s 80 Mil Murdetmat Gathering Parts For Wall Build. Team DC Audio 2014 Member Link to comment Share on other sites More sharing options...
tacomaguy1 Posted October 22, 2013 Report Share Posted October 22, 2013 Budget? The chargers from xs are the way to go if you can swing it Team Flex Issues Link to comment Share on other sites More sharing options...
Lbox88 Posted October 22, 2013 Report Share Posted October 22, 2013 Yeah, intellicharger for sure. UBL | Build Log Link to comment Share on other sites More sharing options...
Wicks Posted October 22, 2013 Report Share Posted October 22, 2013 The CTEK MULTI US 25000 advertises 500Ah. XS Power doesn't specific a certain Ah rating, but the manual for the 1005 charger shows the below formula that you can use to determine what you need. How many batteries can I recharge at one time with the IntelliCHARGER? This depends on the size of the batteries. All batteries in the bank must be of the same type and size. In addition, the IntelliCHARGER is expecting the battery bank to be at full charge in ten hours or less. Therefore the size of the batteries and their depth of discharge will play a role in the answer here. Given they were all XS Power 16V AGM batteries with a size of 45Ah at 100% discharged, you can charge up to four in parallel in ten hours. Calculating external Battery Charging Time Charging time will depend on the amp-hour capacity of your battery and on how deeply it is discharged. The following equation calculates an approximate charging time: Charging Time = (CAP x DOD)/(CC x 80%) where: Charging Time = Battery recharge time in hours CAP = Battery capacity in amp-hours DOD = Battery depth of discharge in percent. A fully discharged battery has 100% DOD. CC = Charge current. The rated current output of the charger in amps. 80% = Typical charging efficiency for lead-acid batteries. Example: An XS Power 16V AGM battery rated at 45 amp-hours is 60% discharged, that is, it has a DOD = 60%. Charging time with an IntelliCHARGER 15A unit is calculated as follows: Charging time = (45Ah x 60%)\(25A x 80%) = 1.35 hours This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
g2shuck Posted October 22, 2013 Author Report Share Posted October 22, 2013 The CTEK MULTI US 25000 advertises 500Ah. XS Power doesn't specific a certain Ah rating, but the manual for the 1005 charger shows the below formula that you can use to determine what you need. How many batteries can I recharge at one time with the IntelliCHARGER? This depends on the size of the batteries. All batteries in the bank must be of the same type and size. In addition, the IntelliCHARGER is expecting the battery bank to be at full charge in ten hours or less. Therefore the size of the batteries and their depth of discharge will play a role in the answer here. Given they were all XS Power 16V AGM batteries with a size of 45Ah at 100% discharged, you can charge up to four in parallel in ten hours. Calculating external Battery Charging Time Charging time will depend on the amp-hour capacity of your battery and on how deeply it is discharged. The following equation calculates an approximate charging time: Charging Time = (CAP x DOD)/(CC x 80%) where: Charging Time = Battery recharge time in hours CAP = Battery capacity in amp-hours DOD = Battery depth of discharge in percent. A fully discharged battery has 100% DOD. CC = Charge current. The rated current output of the charger in amps. 80% = Typical charging efficiency for lead-acid batteries. Example: An XS Power 16V AGM battery rated at 45 amp-hours is 60% discharged, that is, it has a DOD = 60%. Charging time with an IntelliCHARGER 15A unit is calculated as follows: Charging time = (45Ah x 60%)\(25A x 80%) = 1.35 hours Based off this formula if I take the 550 AH I will have and figure the batteries are half dead at 275 AH total charge needed with the intlicharger set to 25 amps I should be able to charge my bank in 6.875 hours which is under the stated 10 hours charge max. So if I am understanding this correctly that charger should work without a problem. Budget? The chargers from xs are the way to go if you can swing it As far as budget I am not worried about that. I am going to have over $3000 in electrical anyway so I want the best charger that I can get to make sure I do not ruin $2000 of batteries. 2000 Toyota Camry With Sealed Off Trunk Sky High OFC Wiring DC Power 270 XP Alt AQ 2200 Sub Amp Two DC Level 4 m2 12s 80 Mil Murdetmat Gathering Parts For Wall Build. Team DC Audio 2014 Member Link to comment Share on other sites More sharing options...
g2shuck Posted October 22, 2013 Author Report Share Posted October 22, 2013 SHould I hook the positive to the D3100 under the hood and the negative to the last D3100 battery in the rear bank to charge all 5 at once properly? 2000 Toyota Camry With Sealed Off Trunk Sky High OFC Wiring DC Power 270 XP Alt AQ 2200 Sub Amp Two DC Level 4 m2 12s 80 Mil Murdetmat Gathering Parts For Wall Build. Team DC Audio 2014 Member Link to comment Share on other sites More sharing options...
Wicks Posted October 22, 2013 Report Share Posted October 22, 2013 The batteries are all in parallel therefore the positive connections are all the same as well as all the negatives. Doesn't matter where you connect on the battery bank as long as positive goes to positive and negative to negative. This post sent with 100% recycled electrons. 2004 BMW M3Mechman 280A 2 - XS Power XP30001 - XS Power D375 500F of Maxwell SuperCaps (soon to be 1000F) iPadMini2Dash mounted O-scopeAudison bitOne (Remote DRC MP) Highs Amp - PPI Art A404 Hertz HSK130 (HSK165 waiting...) DC Audio DC9.0K 2- DC Audio XL12m2LEGAL - 147.3dB @ 41Hz OUTLAW - 150.2dB @ 45Hz OUTLAW - 145.7dB @ 30Hz JUNE 2014 SOTM WINNER 2014 COLORADO PEOPLE'S CHOICE WINNER SOTM BUILD:http://www.stevemeadedesigns.com/board/topic/141656-wicks-e46-m3-build-bass-turbo-button-and-a-big-new-addition/page-68#entry2802026 Link to comment Share on other sites More sharing options...
g2shuck Posted October 22, 2013 Author Report Share Posted October 22, 2013 What about this charger. It has all the same features as the xs power 1005 plus it can charge 3 seperate banks at a time and is 30 amps vs the 1005s 25 amps so it would support a bank of roughly 10 d3100s by itself. It can also be used as a 30 amp power supply to test audio equipment. http://www.summitracing.com/parts/sxa-08302?seid=srese1&gclid=CJyPhZ3vqroCFUVp7AodYGgAjA 2000 Toyota Camry With Sealed Off Trunk Sky High OFC Wiring DC Power 270 XP Alt AQ 2200 Sub Amp Two DC Level 4 m2 12s 80 Mil Murdetmat Gathering Parts For Wall Build. Team DC Audio 2014 Member Link to comment Share on other sites More sharing options...
Recommended Posts
Archived
This topic is now archived and is closed to further replies.