Re: [AFMUG] LiFePO4 question again
anything modern (inc chargeverter) worth a salt has adjustable output to accommodate the load/bat/source capabilities On Fri, Apr 5, 2024 at 1:36 PM Ken Hohhof wrote: > I wouldn’t go so big with the charger/rectifier that you can’t run it off > a portable generator if necessary, accounting for both load power and > recharging the batteries. > > > > *From:* AF *On Behalf Of *TJ Trout > *Sent:* Friday, April 5, 2024 3:25 PM > *To:* AnimalFarm Microwave Users Group > *Subject:* Re: [AFMUG] LiFePO4 question again > > > > How much load? meanwell drs-480-48 are pretty good, if you need bigger > than 10a/480w you can parallel or go to ICT or used eltek j series on ebay, > which can be programmed for the correct voltage.. > > > > On Fri, Apr 5, 2024 at 1:13 PM Robert wrote: > > LifePowers have a BMS. But most people power them with a LFP designed > charger to get the power into them much faster than a regular power supply. > > On 4/5/24 12:13 PM, Chuck McCown via AF wrote: > > You will need a BMS unless the battery has one built in. If it does, > > a regular telco rectifier will do the job. > > > > -Original Message- From: Mark - Myakka Technologies via AF > > Sent: Friday, April 5, 2024 10:58 AM > > To: af@af.afmug.com > > Cc: Mark - Myakka Technologies > > Subject: [AFMUG] LiFePO4 question again > > > > I'm finding hard to pass up just getting a 100ah 48v LiFePO4 rackmount > > battery. I have a new fiber system that will need a maximum of 3kw > > once it is maxed out over the years. This seems like an easy and > > clean battery solution. > > > > Question is how do I power the system from the AC side on a daily > > basis and keep the battery charged. The normal rectifier way seems to > > be a bit lacking in LiFePO4 support. > > > > I can get a EG4 Chargeverter 48V 100A Battery Charger that looks like > > it would do the job. Not sure if this thing is designed to run 24/7 > > at load or if it is designed for intermittent loads to just charge > > batteries. > > > > Thoughts? > > > > -- > > > > Thanks, > > Mark mailto:m...@mailmt.com > > > > Myakka Communications > > www.Myakka.com > > > > > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > > > -- > > Thank you, > > > > TJ Trout > > Volt Broadband > > 209.480.3122 Cell > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- Thank you, TJ Trout Volt Broadband 209.480.3122 Cell -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] LiFePO4 question again
A fair point, but it raises another question for me. With lead-acid if your charger is too small it can lead to unequal cells. There’s some rule of thumb formula based on the 10 hour C-rate…..like 1/10th maybe? I’m not sure without looking it up. I’m not sure why. I imagine it’s like resistors in series where the current and voltage divide unequally if the resistance varies, but I’m not sure how higher current would overcome that. My actual question is whether there’s a minimum recommended charge current for a given size of LiFePO4 battery. From: AF On Behalf Of Ken Hohhof Sent: Friday, April 05, 2024 4:36 PM To: 'AnimalFarm Microwave Users Group' Subject: Re: [AFMUG] LiFePO4 question again I wouldn’t go so big with the charger/rectifier that you can’t run it off a portable generator if necessary, accounting for both load power and recharging the batteries. From: AF mailto:af-boun...@af.afmug.com> > On Behalf Of TJ Trout Sent: Friday, April 5, 2024 3:25 PM To: AnimalFarm Microwave Users Group mailto:af@af.afmug.com> > Subject: Re: [AFMUG] LiFePO4 question again How much load? meanwell drs-480-48 are pretty good, if you need bigger than 10a/480w you can parallel or go to ICT or used eltek j series on ebay, which can be programmed for the correct voltage.. On Fri, Apr 5, 2024 at 1:13 PM Robert mailto:i...@avantwireless.com> > wrote: LifePowers have a BMS. But most people power them with a LFP designed charger to get the power into them much faster than a regular power supply. On 4/5/24 12:13 PM, Chuck McCown via AF wrote: > You will need a BMS unless the battery has one built in. If it does, > a regular telco rectifier will do the job. > > -Original Message- From: Mark - Myakka Technologies via AF > Sent: Friday, April 5, 2024 10:58 AM > To: af@af.afmug.com <mailto:af@af.afmug.com> > Cc: Mark - Myakka Technologies > Subject: [AFMUG] LiFePO4 question again > > I'm finding hard to pass up just getting a 100ah 48v LiFePO4 rackmount > battery. I have a new fiber system that will need a maximum of 3kw > once it is maxed out over the years. This seems like an easy and > clean battery solution. > > Question is how do I power the system from the AC side on a daily > basis and keep the battery charged. The normal rectifier way seems to > be a bit lacking in LiFePO4 support. > > I can get a EG4 Chargeverter 48V 100A Battery Charger that looks like > it would do the job. Not sure if this thing is designed to run 24/7 > at load or if it is designed for intermittent loads to just charge > batteries. > > Thoughts? > > -- > > Thanks, > Mark mailto:m...@mailmt.com <mailto:m...@mailmt.com> > > Myakka Communications > www.Myakka.com <http://www.Myakka.com> > > -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- Thank you, TJ Trout Volt Broadband 209.480.3122 Cell -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] LiFePO4 question again
I wouldn’t go so big with the charger/rectifier that you can’t run it off a portable generator if necessary, accounting for both load power and recharging the batteries. From: AF On Behalf Of TJ Trout Sent: Friday, April 5, 2024 3:25 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] LiFePO4 question again How much load? meanwell drs-480-48 are pretty good, if you need bigger than 10a/480w you can parallel or go to ICT or used eltek j series on ebay, which can be programmed for the correct voltage.. On Fri, Apr 5, 2024 at 1:13 PM Robert mailto:i...@avantwireless.com> > wrote: LifePowers have a BMS. But most people power them with a LFP designed charger to get the power into them much faster than a regular power supply. On 4/5/24 12:13 PM, Chuck McCown via AF wrote: > You will need a BMS unless the battery has one built in. If it does, > a regular telco rectifier will do the job. > > -Original Message- From: Mark - Myakka Technologies via AF > Sent: Friday, April 5, 2024 10:58 AM > To: af@af.afmug.com <mailto:af@af.afmug.com> > Cc: Mark - Myakka Technologies > Subject: [AFMUG] LiFePO4 question again > > I'm finding hard to pass up just getting a 100ah 48v LiFePO4 rackmount > battery. I have a new fiber system that will need a maximum of 3kw > once it is maxed out over the years. This seems like an easy and > clean battery solution. > > Question is how do I power the system from the AC side on a daily > basis and keep the battery charged. The normal rectifier way seems to > be a bit lacking in LiFePO4 support. > > I can get a EG4 Chargeverter 48V 100A Battery Charger that looks like > it would do the job. Not sure if this thing is designed to run 24/7 > at load or if it is designed for intermittent loads to just charge > batteries. > > Thoughts? > > -- > > Thanks, > Mark mailto:m...@mailmt.com <mailto:m...@mailmt.com> > > Myakka Communications > www.Myakka.com <http://www.Myakka.com> > > -- AF mailing list AF@af.afmug.com <mailto:AF@af.afmug.com> http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- Thank you, TJ Trout Volt Broadband 209.480.3122 Cell -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] LiFePO4 question again
How much load? meanwell drs-480-48 are pretty good, if you need bigger than 10a/480w you can parallel or go to ICT or used eltek j series on ebay, which can be programmed for the correct voltage.. On Fri, Apr 5, 2024 at 1:13 PM Robert wrote: > LifePowers have a BMS. But most people power them with a LFP designed > charger to get the power into them much faster than a regular power supply. > > On 4/5/24 12:13 PM, Chuck McCown via AF wrote: > > You will need a BMS unless the battery has one built in. If it does, > > a regular telco rectifier will do the job. > > > > -Original Message- From: Mark - Myakka Technologies via AF > > Sent: Friday, April 5, 2024 10:58 AM > > To: af@af.afmug.com > > Cc: Mark - Myakka Technologies > > Subject: [AFMUG] LiFePO4 question again > > > > I'm finding hard to pass up just getting a 100ah 48v LiFePO4 rackmount > > battery. I have a new fiber system that will need a maximum of 3kw > > once it is maxed out over the years. This seems like an easy and > > clean battery solution. > > > > Question is how do I power the system from the AC side on a daily > > basis and keep the battery charged. The normal rectifier way seems to > > be a bit lacking in LiFePO4 support. > > > > I can get a EG4 Chargeverter 48V 100A Battery Charger that looks like > > it would do the job. Not sure if this thing is designed to run 24/7 > > at load or if it is designed for intermittent loads to just charge > > batteries. > > > > Thoughts? > > > > -- > > > > Thanks, > > Mark mailto:m...@mailmt.com > > > > Myakka Communications > > www.Myakka.com > > > > > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- Thank you, TJ Trout Volt Broadband 209.480.3122 Cell -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] LiFePO4 question again
LifePowers have a BMS. But most people power them with a LFP designed charger to get the power into them much faster than a regular power supply. On 4/5/24 12:13 PM, Chuck McCown via AF wrote: You will need a BMS unless the battery has one built in. If it does, a regular telco rectifier will do the job. -Original Message- From: Mark - Myakka Technologies via AF Sent: Friday, April 5, 2024 10:58 AM To: af@af.afmug.com Cc: Mark - Myakka Technologies Subject: [AFMUG] LiFePO4 question again I'm finding hard to pass up just getting a 100ah 48v LiFePO4 rackmount battery. I have a new fiber system that will need a maximum of 3kw once it is maxed out over the years. This seems like an easy and clean battery solution. Question is how do I power the system from the AC side on a daily basis and keep the battery charged. The normal rectifier way seems to be a bit lacking in LiFePO4 support. I can get a EG4 Chargeverter 48V 100A Battery Charger that looks like it would do the job. Not sure if this thing is designed to run 24/7 at load or if it is designed for intermittent loads to just charge batteries. Thoughts? -- Thanks, Mark mailto:m...@mailmt.com Myakka Communications www.Myakka.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] LiFePO4 question again
You will need a BMS unless the battery has one built in. If it does, a regular telco rectifier will do the job. -Original Message- From: Mark - Myakka Technologies via AF Sent: Friday, April 5, 2024 10:58 AM To: af@af.afmug.com Cc: Mark - Myakka Technologies Subject: [AFMUG] LiFePO4 question again I'm finding hard to pass up just getting a 100ah 48v LiFePO4 rackmount battery. I have a new fiber system that will need a maximum of 3kw once it is maxed out over the years. This seems like an easy and clean battery solution. Question is how do I power the system from the AC side on a daily basis and keep the battery charged. The normal rectifier way seems to be a bit lacking in LiFePO4 support. I can get a EG4 Chargeverter 48V 100A Battery Charger that looks like it would do the job. Not sure if this thing is designed to run 24/7 at load or if it is designed for intermittent loads to just charge batteries. Thoughts? -- Thanks, Mark mailto:m...@mailmt.com Myakka Communications www.Myakka.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
