Schematics, sources for cells and safety considerations can be found here: Safety Update: If the cells have a voltage difference of more than .3 of a volt (example: one cell is 2.7 volts, and another cell is 3.5 volts), you should not parallel connect, and instead discharge the higher voltage cell with a 25-50 watt, 2.7 ohm resistor. Just attach the leads of the resistor to the individual higher voltage cell, and wait till it is at a voltage that is closer to the other cells. When they are within .5 volts of each other, then you can connect them in parallel and allow them to equalize. Another way to do this is to charge the lower voltage cells, but 3 volt chargers are not easy to find, so I would stick to the resistor method. These resistors only cost a dollars each, and you can find them at most electronics supply stores.
Video Table of Contents
Cost of System: 0:42
Lithium Battery Crash Course: 1:56
Overdischarge Protection: 2:25
Bottom Balancing and Balancing Explained: 3:56
DIY Step by Step Instructions: 6:08
Connecting cells together with VHB and Hose Clamps: 7:24
Adding Bus Bars: 9:34
Adding a Balance Cable: 10:26
Connecting the Battery to a Balancer: 12:45
How to Bottom Balance: 13:18
Manually balancing the cells with large resistors: 16:36
Removing balance cable and adding terminal covers and battery cables: 17:46
Recommended Charge Profile Parameters: 18:17
Charging LiFePO4 batteries with an alternator: 19:31
Cold temperature charging methods: 21:07
Shore power charging: 21:46
Parallel vs. series of battery cells, and max number of parallel strings recommended: 24:34
If the cells have a voltage difference of more than .2-.3 of a volt (example: one cell is 2.7 volts, and another cell is 3.5 volts), you should not parallel connect, and instead discharge the higher voltage cell with a 25-50 watt, 2.7 ohm resistor. Just attach the leads of the resistor to the individual higher voltage cell, and wait till it is at a voltage that is closer to the other cells. When they are within .5 volts of each other, then you can connect them in parallel and allow them to equalize. Another way to do this is to charge the lower voltage cells, but 3 volt chargers are not easy to find, so I would stick to the resistor method. These resistors only cost a dollars each, and you can find them at most electronics supply stores.
Check out my latest best-selling book on RV solar:
Check out my "ultimate vehicle dwelling" website:
Want more help with solar for your RV or van? Check out this page:
Personal Instagram:
Important documents to show to the police if you are a van dweller:
----------------------------------------------------------------------------------------
These videos are for fun. What I do for a living is write health books on physical therapy and nutrition (and general health). My latest large audience health book can be found here:
If you are interested in seeing other books that I have created, check out my author bio, on amazon.com, by clicking here:
My other Websites:
-----------------------------------------------------------------------------------------------------------
Amazon links to support this channel
Work horse camera for interviews:
My favorite action camera (unicycle/vlog videos):
My favorite selfie stick in the world:
My memory card:
------------------------------------------------------------------
Business email:
pfsurvivalguide@gmail.com
Fan mail/products to be reviewed, can be sent to:
William Prowse
215 reservation rd.
Ste 0 pmb 133
Marina Ca 93933
----------------------------------
Thanks for watching! :)
Every video includes some form of paid promotion.
0 Comments