I had a problem with the request in the specification I asked for a p type output and sent a t type, I was a little upset about it because it does not create altering the battery for security reasons. but I give it five stars just because I did a battery capacity test and it yielded 70km on an electric scooter I could even go further but I didn't want to go to the limit. I had a 60v 30a lithium battery with branded ceculas that was 65km before the bms block. so i'm happy with the performance i hope durabelity is also in. i will do a review on youtube. but I approve of the battery. for those who do not have a charger, I recommend buying a 5a one much faster.