Matched Cells

In this tutorial, I will share how I maintain/matched my batteries. Keep in mind that my race cells are the same as my practice cells. I personally don't have "race" cells...

I do this with 4 sets of same kind cells (total of 16 cells).

First thing I would do is mark down all my cells. I'll number them individually. I would number them and put a date on each cell. You want to use same date cells if you want to do my battery maintance.

As an example, we will use these number for each cell. C5, C6, C7, C8,... C17, C18, C19, C20

*note: I only dicscharge my cells using PN Discharger if I have a race the next day. I don't store my cell after I discharge them. You dont want to do that, you want to keep them with charge if you plan to store them even for couple for days. I keep them to 1.2x volt when I store them.

Step 1:
Discharge them using PN discharger v2.

Step 2:
When the light is out, Switch their position from, C17, C18, C19, C20 to C18, C19, C20, C17. For some reason, when I do this procedure I get a pretty consistent voltage range from all four cells. Like 1.05- 1.09 on all 4 cells. If not,  move the other cell one slot and let it sit there for another 10-15 mins (C19, C20, C17, C18).

Then let it rest for about 15 mins.

Step 3:
Position the cells and write down their cell numbers:

Step 4:
Using a volt meter or your lacrosse chargers, place the cells one by one and check their voltage. You want theirvoltage to be as close as possible with the others. I'd group them like so, 1.01-1.09 or 1.10- 1.19. If the numbers are not close to each other, don't worry... Keep in mind that we still have 3 other sets to discharge/charge. Also no
need to write down the discharged volt.

Step 5:
Charge them all with 1 amp (1000 mah) with an individual charger like maha and lacrosse. You want a charger that shows voltage and mah capacity. This way you know how your batteries are doing.

*note: please place a fan infront of your lacrosse chargers to eliminate false peaking. Team Orion, R1750 and intellect cells tend to leak and it seems to be normal for these type of cells.

Step 6:
When charging is complete, write down the mah on each cells. Below are just given (random) numbers as an example.
C17 -850mah
C18 -900mah
C19 -880mah
C20 -750mah

Step 7:
Start Charging the next set with the same procedure. Dont forget to keep the group as follows:
Same type of cells (R1750 w/ R1750, R1900 w/ R1900. TO750 w/ TO750, etc..).

Step 8:
When you're done with your four sets (16 cells of same kind). Match all their mah as follows:

700-750 1st set
750-800 2nd set
850-900 3rd set
900-950 4th set

whatever is closest. You want to keep your 750-800 and 800-850 cell for race as this would be your best set.

That is it folks!

***always keep an eye out when charging. DO NOT leave them charging without your attendance. Also, do at your own risk***