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ajabani4allah:
I need a very Good charger for 12.6v 100Ah LifePo Battery. If you have please send the picture and the price

I have 0 to 50A adjustable current and voltage charger for 45k

smallsmall:

You sure say you reason this one well at all?
There are Hybrid Models of the same capacity or less, if the "idle power consumption" was the only problem.

Unless you saying the Inverter will not charge the batteries or it would not give output or he cant expand his battery bank to 8units or even change to Lithium batteries in the nearest future?

Battery size is a function of many variables but it is better to oversize the inverter from the get-go, (due to its high, initial cost outlay) and then gradually increase the size of your batteries to it (no negative consequence), than to under-size your Inverter from the beginning, then you have to pay big money to buy one of higher capacity, when your needs increase.
And you can bet, needs always increase over time.

the matter complex small, 8kva non hybrid inverter would hv about 450w idle consumption. this is about 10kwh, more than the total energy capacity of 4 units 220ah battery........................
4kw to 6kw is ok for most avg homes.......................judging from the Op's post, one can deduce that 8kw would be an overkill for him

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dollarnaira:


Output voltage of 12.8 is for lithium settings for 3s. Lead acid charges at 14.4v at automatic setting. The manual settings go as far as 15.7v.

Probably you had a defective one.

If the setting of the lithium battery is 4s what would be the correct charging voltage of the charger?

ajabani4allah:


If the setting of the lithium battery is 4s what would be the correct charging voltage of the charger?

13.8v

dollarnaira:

13.8v

I thought it will be 14.8v because voltage of each of the 4cells in series is around 3.7 totaling 14.8v

@ajabani4allah & @dollarnaira

A quick contribution to your conversation

LiFePO4 @ nominal voltage is @3.2V while fully charge at 3.6V - so a 3s/4s is 9.6V/12.8V charging to full voltage will be 10.8V/14.4V

While Li-ion @ nominal is 3.7V while fully charged is 4.2V - so a 3s is 11.1V charging to full voltage is 12.6V

LiFePO4 is closely related to Lb based batteries when been used with conventional inverters

https://www.youtube.com/watch?v=KFr7Idc3EE8

ajabani4allah:


I thought it will be 14.8v because voltage of each of the 4cells in series is around 3.7 totaling 14.8v

Thought u were talking of LifePO4 at 4s.
Yes lithium ion at 4s is 14.8v(nominal charge).
Full charge is 16.8v

olopan:
@ajabani4allah & @dollarnaira

A quick contribution to your conversation

LiFePO4 @ nominal voltage is @3.2V while fully charge at 3.6V - so a 3s/4s is 9.6V/12.8V charging to full voltage will be 10.8V/14.4V

While Li-ion @ nominal is 3.7V while fully charged is 4.2V - so a 3s is 11.1V charging to full voltage is 12.6V

LiFePO4 is closely related to Lb based batteries when been used with conventional inverters

@olopan
Safe charging for LifePO4 3.2v at 4s is 13.8v.Some do 14.0 but i safety do 13.7v to extend battery life.

ajabani4allah:


If the setting of the lithium battery is 4s what would be the correct charging voltage of the charger?

The Maximum charging voltage.
If Li ion battery= 4.2 x 4= 16.8 but if LiFeO4= 3.65 x 4=14.6 but you can charge Li ion at 4x4= 16v, and LiFeO4 at 3.5x4= 14volt. Because lithium batteries are not to left on a peak voltage of 4.2v and 3.65v per cell of Li ion and LiFeO4 respectively.

Does anyone here use Lithium Titanate batteries?
Can you give us some review of real-world experience or point in the direction of one?
Any suppliers locally in Nigeria?

Dishtech:

The Maximum charging voltage.
If Li ion battery= 4.2 x 4= 16.8 but if LiFeO4= 3.65 x 4=14.6 but you can charge Li ion at 4x4= 16v, and LiFeO4 at 3.5x4= 14volt. Because lithium batteries are not to left on a peak voltage of 4.2v and 3.65v per cell of Li ion and LiFeO4 respectively.

I have a 12vDC ceiling fan and a 12v plasma tv I can plug directly to the battery. I am considering the Li ion 4s(16.8v full charge) cells because my fan doesn't start at the 12v rated voltage it starts around 14v but I am thinking if this will not damage the tv and the fan

Also, which of the batteries has more life cycle?

Pls can somebody help me with names of 1.5 or 2kva 24volt pure sine wave inverter with low idle consumption.

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ajabani4allah:


I have a 12vDC ceiling fan and a 12v plasma tv I can plug directly to the battery. I am considering the Li ion 4s(16.8v full charge) cells because my fan doesn't start at the 12v rated voltage it starts around 14v but I am thinking if this will not damage the tv and the fan

Also, which of the batteries has more life cycle?

I can't guarantee you that because most electronic has a maximum high voltage tolerance level. I can advise you to make a different power bank for the fan with 4s lithium battery and 3s for the TV. You can equally buy a boost converter

ajabani4allah:


I have a 12vDC ceiling fan and a 12v plasma tv I can plug directly to the battery. I am considering the Li ion 4s(16.8v full charge) cells because my fan doesn't start at the 12v rated voltage it starts around 14v but I am thinking if this will not damage the tv and the fan

A buck converter will be your best option if you are to use a 4s (16.8v) Li-ion pack. In fact using a 14s in this scenario is not a bad idea. But if your TV does well on 12v input and your DC fan does not pick up at that voltage until it gets to 14v, the two volts disparity means you will need one buck converter for each device - one set at 12v output for the TV and the second one set at 14v output for the DC fan.

You can check up on AliExpress for good buck converters.

ajabani4allah:

Also, which of the batteries has more life cycle?

Both Li-ion and LFP are good chemistries with appreciable life cycle. Li-ion initially has much less cycles (around 2500) than LFP but new improvements have significsntly extended that, though not at par with the 4000 cycles boasted by LFP yet.

Li-ion has significantly more energy density than LFP such that Tesla and some other BEV makers prefer to use it for their high performance trims where rapid rush/drawing of electric current is required. However Li-ion is less safer than LFP with the risk of fires. But even fire risk with Li-ion is significantly low with use of proper Battery Management System devices.

Dishtech:

I can't guarantee you that because most electronic has a maximum high voltage tolerance level. I can advise you to make a different power bank for the fan with 4s lithium battery and 3s for the TV. You can equally buy a boost converter

I guess you have a typo there. What he requires is a buck converter to bring 16.8v down to lower voltages.

NiyiOmoIyunade:
Yes flooded batteries indeed exhibit lower voltage than other lead acid chemistries while at rest and at work.

However at 58v you are not charging your batteries to full. In general flooded batteries need to get to a minimum of about 14.6v per 12v battery i.e 58.4v for the battery pack. Ideally they should absorb at 14.7 to 14.8v per 12v battery which is a range of 58.8v to 59.2v for the battery pack.

Every month or so, you need to equalize the batteries and get them into the 15v per 12v battery range

It will be useful to read your battery data sheet (some info should be on the battery case) and adjust charging parameters accordingly if your inverter is capable.

If at any point in troubleshooting , the dealer swapped out or topped off electrolyte, then you are in a delicate place as they may have used too strong or too weak of a mix - an hydrometer is your best friend to know the SG and SoC of your batteries and inform your next steps.

Good morning house.. Please what is the minimum cutoff voltage for tubular batteries?

I realised the default on Ipower inverter is 10.5V for a 12V system and 42V for a 48V system. I consider this abysmally low based on what I see here.
I would like to change the default settings but I need guidance on the figure knowing fully well these batteries show low voltages even when fully charged and the charging source removed

ceaser:


A buck converter will be your best option if you are to use a 4s (16.8v) Li-ion pack. In fact using a 14s in this scenario is not a bad idea. But if your TV does well on 12v input and your DC fan does not pick up at that voltage until it gets to 14v, the two volts disparity means you will need one buck converter for each device - one set at 12v output for the TV and the second one set at 14v output for the DC fan.

You can check up on AliExpress for good buck converters.



Both Li-ion and LFP are good chemistries with appreciable life cycle. Li-ion initially has much less cycles (around 2500) than LFP but new improvements have significsntly extended that, though not at par with the 4000 cycles boasted by LFP yet.

Li-ion has significantly more energy density than LFP such that Tesla and some other BEV makers prefer to use it for their high performance trims where rapid rush/drawing of electric current is required. However Li-ion is less safer than LFP with the risk of fires. But even fire risk with Li-ion is significantly low with use of proper Battery Management System devices.



I guess you have a typo there. What he requires is a buck converter to bring 16.8v down to lower voltages.

Thanks so much for this knowledge based answer, I really appreciate

ceaser:


A buck converter will be your best option if you are to use a 4s (16.8v) Li-ion pack. In fact using a 14s in this scenario is not a bad idea. But if your TV does well on 12v input and your DC fan does not pick up at that voltage until it gets to 14v, the two volts disparity means you will need one buck converter for each device - one set at 12v output for the TV and the second one set at 14v output for the DC fan.

You can check up on AliExpress for good buck converters.



Both Li-ion and LFP are good chemistries with appreciable life cycle. Li-ion initially has much less cycles (around 2500) than LFP but new improvements have significsntly extended that, though not at par with the 4000 cycles boasted by LFP yet.

Li-ion has significantly more energy density than LFP such that Tesla and some other BEV makers prefer to use it for their high performance trims where rapid rush/drawing of electric current is required. However Li-ion is less safer than LFP with the risk of fires. But even fire risk with Li-ion is significantly low with use of proper Battery Management System devices.



I guess you have a typo there. What he requires is a buck converter to bring 16.8v down to lower voltages.

Typo error, I mean buck converter I believe he should understand that it was a typographical error.

Trying to get a relatively cheap hybrid inverter.
Could someone kindly recommend which I should go for between the 2 brands, MUST and FELICITY?

Thanks

Thunderbolt:
Trying to get a relatively cheap hybrid inverter.
Could someone kindly recommend which I should go for between the 2 brands, MUST and FELICITY?

Thanks

none are good enough. get a SOROTEC or ANERN.

earthrealm:


the matter complex small, 8kva non hybrid inverter would hv about 450w idle consumption. this is about 10kwh, more than the total energy capacity of 4 units 220ah battery........................
4kw to 6kw is ok for most avg homes.......................judging from the Op's post, one can deduce that 8kw would be an overkill for him

It's safer to say "could have" as there are 8kw non hybrid that consumes way less than that

Valto:
none are good enough. get a SOROTEC or ANERN.

Thanks so much for the advice.
However these brands seem to be a bit difficult to find.

Thunderbolt:


Thanks so much for the advice.
However these brands seem to be a bit difficult to find.

Yeah, they are rugged, and thus cost slightly more than their contemporaries, thus people shy away from buying them

Valto:
none are good enough. get a SOROTEC or ANERN.

Well, I have had a Felicity for more than a year. Has never coughed for a single day.

earthrealm:


Yeah, they are rugged, and thus cost slightly more than their contemporaries, thus people shy away from buying them

ANERN 24v is not that costly sha he can get it much less than 300k.