Skip to content

EVE MB31 stud has come loose?

19 Jan 2026 0 Comments

Have you ever encountered or seen a situation like this? The terminal stud on the battery cell has come loose, as shown in the image below.

Since we DIY lithium battery enthusiasts don't have professional welding equipment, if the terminal stud comes loose, we can't re-process the battery cell terminal, making assembly impossible and wasting an expensive battery cell.

So why does this happen?

Reason 1: Poor welding.

The laser welding power did not meet the requirements, resulting in an unstable connection between the terminal post and the electrode, causing it to detach.

Reason 2: Excessive torque.

DIY enthusiasts use excessive torque during assembly, causing the terminal stud to detach.

How can this situation be resolved?

DIY enthusiasts usually find it difficult to perform post-sale welding of the terminal studs without professional welding equipment.

Wistek provides battery cells that meet product quality requirements.

Quality Inspection:
Before welding in bulk, samples are used to test the welding process and perform torque tests to meet shipping requirements.
After the bulk welding is completed, samples are inspected.

Click:Wistek MB31 Cells EU Stock

Click:Wistek MB31 Cells USA Stock

More Other Topics:

Why is it necessary to polish the electrodes when assembling LiFePO4 batteries?

Double Holes Studs VS Single M6 Stud

Prev Post
Next Post

Leave a comment

All blog comments are checked prior to publishing

Someone recently bought a
[time] ago, from [location]

Thanks for subscribing!

This email has been registered!

Shop the look

Choose Options

white case 15kwh wall mounted lifepo4 battery
Learn about current promotional products and get discounted prices.

Recently Viewed

Social

Edit Option
Back In Stock Notification
Compare
Product SKURatingDescription Collection Availability Product Type Other Details
this is just a warning
Login
Shopping Cart
0 items
Wistek Logo
bulk stock mb31 cells label

Before you leave

Contact us to receive a 5% discount..