Which of these is negative?

ESK8 Electronics
1

Need to know so I don’t fry a BMS!

https://www.amazon.co.uk/2-1mm-5-5mm-Socket-Charger-Power/dp/B00O9YT6MG/ref=pd_lpo_vtph_60_tr_img_2?_encoding=UTF8&psc=1&refRID=K844TXZN0YNBMD33JFQ6

Cheers in advance!

2

Easiest way to check is to plug in your charger and then use a multimeter on the terminals to determine which is which… Generally the centre pin is positive.

2 Likes
3

This look accurate?

4

i always check the terminals with multimeter after i plug in the charger. thats the best way i think

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