help me I failed

[RandaPandaBear]

I have a mod that uses an 18650 battery with a raised center post.

I wanted 5v so I purchased a 4.8v from madvapes (NiMH). of course, fail, they are flat top. Is there anything I can do to use them? I'm so sad

 

[kabonk]

Lithium-ion batteries and chargers

scoll down the page there is a magnetic spacer sitting on top of a penny

 

[RandaPandaBear]

Lithium-ion batteries and chargers

scoll down the page there is a magnetic spacer sitting on top of a penny

a ha! now how do I know which one and how many?

 

[RandaPandaBear]

WIN. I didn't fail. it works just fine after charging