Hardware Easy fix to switch not charging [Last resort]

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TariqSoftDev

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Alright so your switch battery won't charge at all?

My story:
Somehow my battery cell is discharged all the way to 2.3v, now it's probably left some damage on my cell; anyways I can't get it past 2.7v it just about gets there then drops to 2.63v.

A little info on switch cells: A Li-Ion cell which the switch uses normally stays between 3.2v-4.2, 3.2v being 0% and 4.2v being 100%; don't quote me on this as I haven't checked to be 100% sure but this is the general stuff, anyways the nominal voltage is 3.7v for a Li-Ion, dropping below 3v is already slightly dangerous let alone dropping to 2.3v where the switch won't even turn on or show a charging icon.

What you'll need for this fix:
  • Some fine tweezers(To lift out the battery pins from the connector).
  • (Optional) A Multimeter to read along the way.
  • A external cell charger, the ones they use for RC Quad copter cells(Ensure it supports Li-Ion charging)
The fix, the part you've been reading for:

Step 1:

Open up your switch, you'll have 4 tri wings on the rear, 1 philip(plus head) under the micro sd, 1 plus screw at the top, 2 at the bottom near the charger port, 2 center ones on the joycon rails; remove the back and then unscrew the plus heads after removing the micro sd reader and then remove the metal backplate.

Step 2:
46XlzcQ.jpg


Disconnect the battery connector from the board and then use the fine tweezers to slightly lift the plastic tabs on it to remove one negative and one positive pin.

Step 3:

U7lWPwT.jpg


Connect eveything up like shown and let it charge


IMPORTANT, PLEASE READ!:
  • Please only start charging your cell with 0.1A if below 2.8v.
  • If above 2.8v then charge at 0.5A
  • Once at 3.7v you MAY charge at 1A but it is safer to charge with 0.5A till 4.2V full is reached!
 
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Reactions: Adr990 and stitchxd
I had to do this sometime back when we didnt know auto RCM will charge
 

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