Re: [MBZ] Lithium batteries
I read the website a little more and it seems they do have charge management hardware built in. So that makes the need for a special charger a little puzzling. If the car alternator is OK, why isn't my old 8A 12V plug-in charger OK? Allan Curt Raymond writes: > It suggests you'll need to add a charger. > "IMPORTANT: Only use Lithium Lifepo4 Charger when charging these > batteries from a charger. How to Choose a Charger" > > Lithium batteries can be safely discharged lower than lead acid. Lead > acid is only supposed to go to 50%, IIRC lithium can go to 80% or > maybe a little less. > > -Curt > > On Friday, May 14, 2021, 12:49:41 PM EDT, Allan Streib via Mercedes > wrote: > > What's the advantage? Just the weight savings? > > Car charging circuits won't be set up to safely charge a Li battery, so > I guess these batteries include the electronics to manage the charging? > And discharging? You can't allow them to get too low either. > > Allan > > Mitch Haley via Mercedes writes: > >> They're putting lithium starting batteries in big cases so they are a >> drop in replacement for lead-acid. >> >> > https://antigravitybatteries.com/products/starter-batteries/automotive/ag-h8-rs/ ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Lithium batteries
It suggests you'll need to add a charger."IMPORTANT: Only use Lithium Lifepo4 Charger when charging these batteries from a charger. How to Choose a Charger" Lithium batteries can be safely discharged lower than lead acid. Lead acid is only supposed to go to 50%, IIRC lithium can go to 80% or maybe a little less. -Curt On Friday, May 14, 2021, 12:49:41 PM EDT, Allan Streib via Mercedes wrote: What's the advantage? Just the weight savings? Car charging circuits won't be set up to safely charge a Li battery, so I guess these batteries include the electronics to manage the charging? And discharging? You can't allow them to get too low either. Allan Mitch Haley via Mercedes writes: > They're putting lithium starting batteries in big cases so they are a > drop in replacement for lead-acid. > > https://antigravitybatteries.com/products/starter-batteries/automotive/ag-h8-rs/ > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Lithium batteries
What's the advantage? Just the weight savings? Car charging circuits won't be set up to safely charge a Li battery, so I guess these batteries include the electronics to manage the charging? And discharging? You can't allow them to get too low either. Allan Mitch Haley via Mercedes writes: > They're putting lithium starting batteries in big cases so they are a > drop in replacement for lead-acid. > > https://antigravitybatteries.com/products/starter-batteries/automotive/ag-h8-rs/ > ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Lithium batteries
In aircraft the continuous drain capacity is also a concern - you want navigation and communications if the alternator dies before you get to the ground. The lithiums are more than twice the cost, but weight is less than a fourth (VERY significant) and they seem to be expected to last 6 years in use instead of the lead acid's 5 years expected lifespan. They also have to provide spacers for the battery box in certificated aircraft. I will be using them in the experimentals I'm working on. On Fri, May 14, 2021 at 10:30 AM Mitch Haley via Mercedes < mercedes@okiebenz.com> wrote: > On 2021-05-14 11:17, OK Don via Mercedes wrote: > > I wonder how many they will sell at $1,200??? > > I seem to recall seeing airplane lithiums (10-15lb) for around $400. > They weren't 2000 CCA however. > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Wernher Von Braun 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Lithium batteries
On 2021-05-14 11:17, OK Don via Mercedes wrote: I wonder how many they will sell at $1,200??? I seem to recall seeing airplane lithiums (10-15lb) for around $400. They weren't 2000 CCA however. ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Lithium batteries
I'm seeing that in the off grid solar community a lot lately. The extended lifespan of lithium is supposed to provude considerable savings over lead acid. Unfortunately I guess at least some lithium batteries don't like extreme cold. I just checked and the weather station in the camp says -33.5F was the minimum temp last winter. I'm not sure lithium batteries are right for us. While the ones you linked are absurdly expensive you're getting twice the CCA for less than half the weight. Looking around that site I see that to replace the 2x 100ah batteries I have would be $1800 but would actually give me more usable power because you can safely do a deeper discharge on lithium than on lead acid cells. I'm not going there but it's interesting to know whats available. -Curt On Friday, May 14, 2021, 11:09:13 AM EDT, Mitch Haley via Mercedes wrote: They're putting lithium starting batteries in big cases so they are a drop in replacement for lead-acid. https://antigravitybatteries.com/products/starter-batteries/automotive/ag-h8-rs/ ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
Re: [MBZ] Lithium batteries
I wonder how many they will sell at $1,200??? On Fri, May 14, 2021 at 10:09 AM Mitch Haley via Mercedes < mercedes@okiebenz.com> wrote: > They're putting lithium starting batteries in big cases so they are a > drop in replacement for lead-acid. > > > https://antigravitybatteries.com/products/starter-batteries/automotive/ag-h8-rs/ > > ___ > http://www.okiebenz.com > > To search list archives http://www.okiebenz.com/archive/ > > To Unsubscribe or change delivery options go to: > http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com > > -- OK Don "Whenever you find yourself on the side of the majority, it is time to pause and reflect." Mark Twain “Basic research is what I’m doing when I don’t know what I am doing.” Wernher Von Braun 2013 F150, 18 mpg 2017 Subaru Legacy, 30 mpg 1957 C182A, 12 mpg - but at 150 mph! ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
[MBZ] Lithium batteries
They're putting lithium starting batteries in big cases so they are a drop in replacement for lead-acid. https://antigravitybatteries.com/products/starter-batteries/automotive/ag-h8-rs/ ___ http://www.okiebenz.com To search list archives http://www.okiebenz.com/archive/ To Unsubscribe or change delivery options go to: http://mail.okiebenz.com/mailman/listinfo/mercedes_okiebenz.com
