1. In 21700 battery which is better set up for 12v system battery pack?3s or 4s?

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2. Could you build a 10s LFP with 32650s in a shrink wrap tube?

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3. I have 3.7v per cell 5000mah 50 pices and I want to make 12v which should I go for 3s or 4s

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4. You wouldn’t really be loosing anything by not full charging cause that top .2 volts drops off almost right away anyway it’s not a linear discharge so yea 4s under charge it is

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5. Theo V Hello you must have this converter
   
   here is the data of that converter
   
   Product sheet Victron Phoenix 12_1200 Inverter
   
   It goes from 9.2 to 17.0 volts

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6. To add to this, when using 3s battery system, you need to increase the ampere of the battery pack so that it stands the long time duration and by using this method it will mashup with any type of 12volt inverters instead of using 4s battery system which will select some brand of inverters

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7. Can four of the battery banks connected in parallel work to increase the watt hours

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8. What is the purpose of the shunt circuit?

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9. well i bought a 12v 500w inverter in 2022. and it shuts down at 9v and kann handel 14.5v. my guess its ment to be used with a 3s in mind, but i usually dont go under 3,3v per cell. so i think it would be perfekt when it would shut down at 9,5v so i dont stress my cells. and i mostly charge them up to 4,10v via solar. im using the 20-90% rule, so i can get the most cycles as possibal.

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10. he's claiming you lose out on charging capacity with a 4S rig like this because it'll only charge to 16 as opposed to 16.8. HOWEVER considering that lithium ion batteries last longest when only charged to 80% of their max capacity, this rig by virtue OF its flaw, ensures your battery will NEVER over charge and as such lengthen the over all life of your cells. Down side is it will draw down to a critically low level if allowed to, BUT a simple kill switch board programed to kill power at 12 volts instead of 10, (In theory you should also be able to adjust the lower kill switch voltage inside the power converter upward to 12 volts) can prevent that from happening.

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11. electrical components are only good 80% of its rated capacity. eg 12 amps on a 15amp circuit is what is nominally is. cheers mang, love your videos learning to work with dc/lithium working as an electrician for about 5 years now, and we have done very little dc work, basically systems inside the cabinets eg annunciator panels n stuff like that . This has been great refreshment and I've been learning stuff i never even knew. cudo's brotha.

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12. I want to build a 12 volt 10AH or better battery pack for the icy Breeze cooler I just bought.

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13. question? if you use a buck converter to limit voltage once the voltage drops below that limit will it operate normally as the voltage falls? and a side question. are there buck converters that can handle a 2-3000 watt inverter?

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14. Old video. 2200 75cent cells lol. 2600. UP to 3500 DUH

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15. Ez 4 same as building large packs. You never ever stress the cells. You have to watch your VOLTAGE at 3. U R maxing out the cells

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