Chris1992 Posted January 11, 2018 Report Share Posted January 11, 2018 Hi I was wondering if someone could help me out again I have already decided what type of batteries to go with help previous has made it clear that 6v deep cycles are better for the intended use has but a question now sprung to Mind I'm going to be using 4x AGM- 6210 connected to get 12v I was wondering what would be the safe max charge current as not to do any damage to the batteries any advice would be helpfull thanks in advance Link to comment Share on other sites More sharing options...
Smitty77_7 Posted January 11, 2018 Report Share Posted January 11, 2018 The 'safe' answer, is to look at the spec's/guidance provided by the 'specific' battery manufacturer you've chosen. Different AGM manufactures, have different guidance on the values for Bulk/Absorb/Float/Equalize(Condition). And if your current charger does not include a battery temperature sensor and compensation to charging values. Add a temp sensor if available, and or, replace the exiting charger with a unit sophisticated enough to include battery temperature compensation... This is a worthwhile investment, if missing in your current setup. $.02... Best of luck to you, Smitty Be safe, have fun, Smitty 04 CC Allure "RooII" - Our "E" ride for life! Link to comment Share on other sites More sharing options...
Chris1992 Posted January 11, 2018 Author Report Share Posted January 11, 2018 Thank you very much for your input I have looked for a data sheet but can't find anything relating to charging just discharging and the inverter I'm using is a inverter charger combo was hoping to not to get another charger will have to see if I can find another way Thanks once again Link to comment Share on other sites More sharing options...
Chad Heiser Posted January 11, 2018 Report Share Posted January 11, 2018 Is this the battery you are looking at? http://www.leoch.com/en/product_view.aspx?tid=34&id=70 If it is, according to the chart at the bottom of the page, bulk charging would be at 14.4 volts (approximately at 12 volt). I’m assuming your inverter charger is programmable? If not, the desired charging voltage is kind of moot because you will be stuck with whatever setting is in your charger. 2000 Kenworth T2000 w/ Cummins N14 and autoshift 2017 DRV Mobile Suite 40KSSB4 with factory mods, dealer mods and personal mods - now in the RV graveyard 2022 DRV Full House MX450 with customized floor plan 2018 Polaris RZR Turbo S (fits in the garage) 2016 Smart Car (fits in the garage or gets flat towed behind the DRV when the RZR is in the garage)My First Solar Install ThreadMy Second Solar Install Thread & Photos and Documents Related to the buildMy MX450's solar, battery and inverter system - my biggest system yet! chadheiser.com West Coast HDT Rally Website Link to comment Share on other sites More sharing options...
Yarome Posted January 11, 2018 Report Share Posted January 11, 2018 Good deal. I think you'll be much happier with the 6210's. Leoch's recommendation (in a 12v configuration) is: @ 20 degrees 14.4-14.7 Bulk (temp. compensated @ -15mA/C) 13.6-13.8 Saturation (temp. compensated @ -10mA/C) That seems pretty much in line with what we are used to in mainstream AGM's in the U.S. so I don't see why the same strategies wouldn't apply. I charge mainly off solar so inputing as much current as possible, as quickly as possible, is my goal since solar production hours are limited. Running them "heavy" CAN potentially have an impact on their lifespan, however, higher quality batteries are going to be capable of taking on a higher charge rate with a little more "grace". If your main charge source is shore power then lightening the charge levels a bit makes sense. For Leoch's I would tend to go with a little lighter hand. 6210's on solar I would stay right around 14.6v/13.6v. On shore power... I would go with 14.4v/13.4v (that's not a typo.. 13.4v). Just a nice smooth steady saturation bringing them up to full. Remembering too that you can always "tweak" the charge levels. If they are just coming up too slow on 13.4v... bump it up... but I would start low. 6210 specific specs Link to comment Share on other sites More sharing options...
Chris1992 Posted January 11, 2018 Author Report Share Posted January 11, 2018 Thanks for the info and yes it is is programmable I did have some ideas of voltages as I found that data and the was thinking of having it like that but will have around 14.6v/13.4v for the 30amp battery to battery charge controller from the vans battery it dose have a solar input but it is pretty pointless in the UK due to lack of good sun maybe i might get one or 2 when the summer comes and the inverter/charger would be at 14.4v/13.4v it's amps max out at 70amp would that be too much for this size of bank Or are we talking more like 35amps thanks for all the help much appreciated Link to comment Share on other sites More sharing options...
Yarome Posted January 11, 2018 Report Share Posted January 11, 2018 Unless you're connected to shore power a charger with 70amp output is a moot point. Output would be limited by the amount of input. That being said... 70amps would be a bit large. Opinions vary, but ~10% of capacity is a nice even number. So a 420ah battery bank... a ~40-45amp charger would be "ideal". If charging is typically going to come from your alternator, a modest solar array or portable generator then a 35amp is more than sufficient. If you already have a 30amp there's really no sense in spending money for another 5amps that it's not likely you'll be able to take advantage of anyway. Make sense? Link to comment Share on other sites More sharing options...
Yarome Posted January 11, 2018 Report Share Posted January 11, 2018 To add: "to take advantage of anyway"... from the sounds of what you're intending and talking solely about wet cell/AGM type 6V batteries of that size. Link to comment Share on other sites More sharing options...
Chris1992 Posted January 11, 2018 Author Report Share Posted January 11, 2018 So basically the max input amps should not be more than 10% total cappacity got ya thanks for that thats what i was looking for the inverter has a ups function built in so already have the charger was running shore power/generator though the inverter saves having change over levers so would start the genny if the voltages got low and would continue like normal till I was finished the genny is 5000w/6000w so should cope fine charging the batteries at 50amp total bank size 500ah and running stuff at the same time Link to comment Share on other sites More sharing options...
Yarome Posted January 11, 2018 Report Share Posted January 11, 2018 5000/6000watt genset? That's in the neighborhood of about 22amps max output so no. No problem getting max output from your charger and still have a mess of juice left over. Link to comment Share on other sites More sharing options...
Chris1992 Posted January 11, 2018 Author Report Share Posted January 11, 2018 Thats what i thought its fitted with a 240v 32amp plug so i thought it prety capable thanks for all the help if I have any other questions I know where to come Link to comment Share on other sites More sharing options...
Lou Schneider Posted January 11, 2018 Report Share Posted January 11, 2018 A 240 volt outlet suggests the generator produces 120/240 volt power. If so, it will only deliver half it's rated power into a 120 volt load unless it has a switch to configure the output to 120 volts only. This is because 120 volts only uses half of the windings in a 240 volt generator and you can't combine it with the second half unless it has a switch to put them in phase with each other. While half power is still sufficient to charge the batteries, It's something to keep in mind if you plan on using that generator to run the air conditioner(s). Link to comment Share on other sites More sharing options...
Chris1992 Posted January 11, 2018 Author Report Share Posted January 11, 2018 Sorry should have specified from the UK so we only use 240v Link to comment Share on other sites More sharing options...
Yarome Posted January 11, 2018 Report Share Posted January 11, 2018 1 hour ago, Chris1992 said: Sorry should have specified from the UK so we only use 240v Which is how I got to 22amps on a 5k/6k genset... for those reading. In the U.S. a 6k would be about double the amp rating. Chris knew what I meant. Link to comment Share on other sites More sharing options...
Chris1992 Posted January 11, 2018 Author Report Share Posted January 11, 2018 Yep I knew exactly what you ment It does have 110 outlets but that only for job site work tools Link to comment Share on other sites More sharing options...
sundancer268 Posted January 12, 2018 Report Share Posted January 12, 2018 I called LifeLine on where to set my Inverter Charger and when I ask what the max charge current to use and the Tech said 100 amps if available. My Magnum puts out 100 amps and I have had no problems in my first season on the batteries. I have a 600 amp hour lifeline pack consisting of 4 six volt batteries in series/parallel configuration. I would call the manufacturer and get the straight answer to the charging parameters. They will have the latest information available for your batteries. U.S. Navy GSMC(SW) (RETIRED) 1993-11-01, 26 years service with 23 years of that active and 3 years reserve. Now retired after 20 years at local hospital in the maintenance department. 1995 Gulf Stream Scenic Cruiser 34' DP W/6Spd Allison. Road Master Sterling All terrain, Air Force One, towing new 2019 Jeep Cherokee Elite Link to comment Share on other sites More sharing options...
Chris1992 Posted January 12, 2018 Author Report Share Posted January 12, 2018 Thank you very much I will try and contact them at some point and see what they have to say Link to comment Share on other sites More sharing options...
oldjohnt Posted January 12, 2018 Report Share Posted January 12, 2018 17 hours ago, Chris1992 said: It does have 110 outlets but that only for job site work tools Chris, ifffffffff ????? a genset has BOTH 120 and 240 volt outlets I'm in Lou's camp (see his post above) on this one. A 240 volt output winding can possibly be tapped in the dead center such that it's only one-half or 120 volts from EITHER L1 or L2 outer legs to the center tap Neutral. Then if the genset has a floating Neutral its NOT bonded but bonded otherwise. The NEC as I recall (no warranty) allows the use of a portable genset to feed cord and plug connected tools strictly fed from onboard receptacles with no connection to a grounding electrode. I agree with Yarome's concept that a 5000 watt 240 volt genset would have in theory a 5000/240 = 20.83 amp rating. John T Live from the Florida Flywheelers Antique Tractor Show in Ft Meade Florida Link to comment Share on other sites More sharing options...
Chris1992 Posted January 12, 2018 Author Report Share Posted January 12, 2018 Thanks for the input but the I don't intend to use the 110v system just the 240v system although I'm a bit lost as to weather your saying it will work or won't? And the rules differ some what about power and safety in the UK Am I correct in stating that in the US you don't have fused plugs ? Link to comment Share on other sites More sharing options...
oldjohnt Posted January 12, 2018 Report Share Posted January 12, 2018 1 hour ago, Chris1992 said: although I'm a bit lost as to weather your saying it will work or won't? Sure a 240 volt genset will work to power your 240 volt tools and appliances. 1 hour ago, Chris1992 said: Am I correct in stating that in the US you don't have fused plugs ? In typical distribution its the branch circuit that feeds RECEPTACLES or other such loads that has overcurrent protection (fuses or circuit breakers) although you do find some PLUGS with fuses built in for protection. Sounds like you have it all under control no problems Nice chatting with you John T Link to comment Share on other sites More sharing options...
Chris1992 Posted January 12, 2018 Author Report Share Posted January 12, 2018 I think I've got it figured took me a while of working out the best route to go down for my use Nice chatting to you to very friendly people on here Link to comment Share on other sites More sharing options...
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