Joshdashef Posted May 15, 2019 Report Share Posted May 15, 2019 I'm on the fence of buying either more AGMs or removing all my AGMs and using a single lithium bank (albeit a LifePo4/LTO/etc. 40 ah say from JY or their new 25 ah coming out in a month or two) I have a D5100R under my hood and a D3400 in my trunk as reserve, totalling 125 ah of AGM I plan on running my Fi Sp4 15 on an AAK 4000.1D along a P600x4 (mids and highs). Fuse rating for these are 350 and 100 respectively. I have a HO mechman alternator 240 A with single dedicated pos/neg 1/0 runs to my D5100R then dual pos 1/0 runs to my rear battery. I also already have the XS power charger for these AGMs and like how easy they are to charge up - plug and play / no bs How many more AGMs would I need to power this system? If I went the route of AGMs would I need to stay with the D3400 when adding another reserve or can I add say a D3100 or a XP3000? For perspective; I have a DC 2k and P600x4 right now powering a pair of SA12s. My voltage rests at 14.2 (Honda ELD), normal playing stays around 14 +/- 1v / heavy demoing dips to 13.6-13.8 depending on the song. SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
SnowDrifter Posted May 15, 2019 Report Share Posted May 15, 2019 How are you measuring equivalency? By reserve capacity? Or voltage drop under load Of note: If you follow the lithium route, don't run any lead/acid batts in the system. ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
Joshdashef Posted May 15, 2019 Author Report Share Posted May 15, 2019 5 minutes ago, SnowDrifter said: How are you measuring equivalency? By reserve capacity? Or voltage drop under load Of note: If you follow the lithium route, don't run any lead/acid batts in the system. I'm running this in a daily so I would think I would need a little of both right? Good reserve and minimized voltage drop under load. Thats the plan if I go lithium, ditch the AGMs altogether. I'm just wondering about cost wise, how many AGMs I would need to run the 4k and P600x4 amps, I figure the 40ah of lithium would be sufficient. tl;dr how many Ah of AGM for a 4k amp give or take. SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
SnowDrifter Posted May 15, 2019 Report Share Posted May 15, 2019 You might try syncing up w/ manufacturers for their suggestions, or obtaining spec sheets for the battery. Internal resistance is the important measurement here and can be used to calculate voltage drop given a load. ~~~~~~~~SAY NO TO PHOTOBUCKET~~~~~~~~ Snow's DD-1 tracks here: https://www.stevemeadedesigns.com/board/topic/167433-snows-dd-1-tracks/ My take on OFC vs CCA: https://www.stevemeadedesigns.com/board/topic/110381-things-that-piss-you-off-in-the-car-audio-world/?do=findComment&comment=2461444 Link to comment Share on other sites More sharing options...
DiBo Posted May 15, 2019 Report Share Posted May 15, 2019 I run 2 AAK-4000'S and I have 508ah of AGM and it's bot enough with a 320 amp singer alt. Running the Orion 1000.4 ( 273x4 @ 4ohm and 175x4@4ohm). Clamping around 5700+/- total. Switching to LTO. 200ah bank. Only need 80ah but I'm going big soon. Link to comment Share on other sites More sharing options...
BassMunky Posted May 15, 2019 Report Share Posted May 15, 2019 12 hours ago, Joshdashef said: I'm on the fence of buying either more AGMs or removing all my AGMs and using a single lithium bank (albeit a LifePo4/LTO/etc. 40 ah say from JY or their new 25 ah coming out in a month or two) I have a D5100R under my hood and a D3400 in my trunk as reserve, totalling 125 ah of AGM I plan on running my Fi Sp4 15 on an AAK 4000.1D along a P600x4 (mids and highs). Fuse rating for these are 350 and 100 respectively. I have a HO mechman alternator 240 A with single dedicated pos/neg 1/0 runs to my D5100R then dual pos 1/0 runs to my rear battery. I also already have the XS power charger for these AGMs and like how easy they are to charge up - plug and play / no bs How many more AGMs would I need to power this system? If I went the route of AGMs would I need to stay with the D3400 when adding another reserve or can I add say a D3100 or a XP3000? For perspective; I have a DC 2k and P600x4 right now powering a pair of SA12s. My voltage rests at 14.2 (Honda ELD), normal playing stays around 14 +/- 1v / heavy demoing dips to 13.6-13.8 depending on the song. What the total power? What you have for electrical now? Alt wire and batteries Shakin not Stirred....my buildhttp://www.stevemead...ngle-cab-build/412 CVX And put a sealed enclosure in your trunk cut a hole in your deck and call it ported Link to comment Share on other sites More sharing options...
Joshdashef Posted May 15, 2019 Author Report Share Posted May 15, 2019 3 hours ago, BassMunky said: What the total power? What you have for electrical now? Alt wire and batteries about 4k plus 400 ish. Mechman 240 D3400 and D5100R (125 ah) 1/0 ofc dual runs from front batt to rear reserve. Dedicated 1/0 pos and neg runs for alternator to front battery. SMD Tool Map (2022): https://www.stevemeadedesigns.com/board/topic/220267-smd-tool-map-2022/ My Port Size Calculator (in progress): https://www.stevemeadedesigns.com/board/topic/217087-port-size-calculator-in-progress/ Common Port Walls for a Slot Port: https://www.stevemeadedesigns.com/board/topic/217076-common-port-walls-why-it-matters-to-your-box/?tab=comments#comment-3240313 Link to comment Share on other sites More sharing options...
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