Reddit reviews 2Pcs 3S 11.1V 12.6V 25A W/Balance 18650 Li ion Lithium Battery PCB Protection Board
We found 5 Reddit comments about 2Pcs 3S 11.1V 12.6V 25A W/Balance 18650 Li ion Lithium Battery PCB Protection Board. Here are the top ones, ranked by their Reddit score.
Over voltage range: 4.25 4.35v¡À0.05vOver discharge voltage range: 2.3 3.0v¡À0.05vMaximum operating current: 0 25AMaximum transient current: 34 40AMaterial: PCB
3S 18650 Battery holder
Balanced charger for above
Note that the charger board has 4 connections to the batteries and 2 more for the 12V in/out (6 total). Like this.
You'll want a 12.6 v supply for this (not 12v - 12V isn't enough to charge this)
You can tie the charger, battery pack and heater coil all together. Make the charger so it unplugs (obviously). When you have the charger plugged in, it'll charge + give a boost to the heater. Unplugged, the heater will run on the batteries.
This battery configuration will only put out about 2-3 amps (I forget), so heating is a little slower than the 6 amps the heater really wants. The difference is like 15 vs 18 seconds.
For some good glass tubes (for inside the coil), search eBay for "Cloupor Cloutank M3 Glass"
I used three 18650 batteries soldered in series with a battery manager. Yeah removing the button harness would have definitely saved space.
The one u/Kent1146 recommends they were 2 for 10 on amazon the 25amp bms
2Pcs 3S 11.1V 12.6V 25A W/Balance 18650 Li ion Lithium Battery PCB Protection Board https://www.amazon.com/dp/B07JMY631D/ref=cm_sw_r_cp_api_i_48fADbGR1XBYE
what do you mean enhanced version? It says nothing about it being enhanced, whats the difference?
3s BMS board is this one:
3s BMS Board (Amazon)
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Boost/Buck converter is this one:
Boost Buck Converter (Amazon)
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The idea is to build, essentially, a UPS for a Mac Mini that's running on 12vDC (which it does internally after the factory power supply does its work). My understanding is that when plugged in to the power adapter, the BMS board will charge the batteries with whatever power remains after the Mac Mini and LCD driver board draw their current. If the power adapter is disconnected, the Mac Mini and LCD driver board will then begin running on battery power, like a laptop. The buck/boost converter then is responsible for making sure the voltage form the batteries remains constant at ~12.6v as they discharge. Is my thinking correct?