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Has anyone here ever seen or heard of a 72volt battery?

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  • 15-04-2022 11:38am
    #1
    AMKC
    Registered Users Posts: 15,566 ✭✭✭✭
    Ms


    It's for an electric bike.

    Maybe some in here have been to China or India or country's around there where these are popular.

    Live long and Prosper

    Peace and long life.



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    #2
    goblin59
    Registered Users Posts: 2,236 ✭✭✭goblin59


    you need to be alot more specific than that in regards to batteries.

    What amp, cranking rate, lithium, acid, watts and so on.

    Also the physical dimensions of the battery otherwise you'll end up with a concrete block with terminals


    you could find an equivilent to a 72v battery, but you would need a sidecar to carry it unless you were more specific about the rest of the information.



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    #3
    AMKC
    Registered Users Posts: 15,566 ✭✭✭✭AMKC
    Ms


    It is supposed to be a 72v 45AH battery. The charger for it says

    IMG-20220413-WA0003.jpeg

    That is the charger for it that I got but the battery never came 😒


    The dimensions are 370mm length, 210mm width and 300mm high. The height bit can be less it's just a maximum and the other are maximum too. It could be a bit smaller but they would be the best fit.

    Live long and Prosper

    Peace and long life.



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    #4
    cml387
    Registered Users Posts: 8,363 ✭✭✭cml387


    That's a 5V charger. The 72V is the model number



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    #5
    cml387
    Registered Users Posts: 8,363 ✭✭✭cml387


    Sorry ignore that it's 88.5V



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    #6
    goblin59
    Registered Users Posts: 2,236 ✭✭✭goblin59


    https://www.aegisbattery.com/products/72v-50ah-li-ion-battery-pvc-1?variant=30307125395554


    Thats your battery there going by a quick google.

    But your charger says its for sealed lead batteries, so I think you'd need to look at an entirely new charger and battery set up.


    The wrong charger on a Lithium battery can essentially be a small bomb.

    if you overcharge a lithium cell they just explode and go on fire



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    #7
    AMKC
    Registered Users Posts: 15,566 ✭✭✭✭AMKC
    Ms


    20220415_124543.jpg

    The other side of it has this do. Would the AH being over by 5ah make any difference? it will just last longer is that right?

    Live long and Prosper

    Peace and long life.



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    #8
    goblin59
    Registered Users Posts: 2,236 ✭✭✭goblin59


    what model and make is the vehicle itself? might be better off emailign the manufacturer for a spare part.



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    #9
    Krusty_Clown
    Registered Users Posts: 19,495 ✭✭✭✭Krusty_Clown


    Those sorts of batteries are north of €700. They'll typically have some kind of battery management system specific to the battery/application and as pointed out, need to be of specific dimensions to fit your application. It's not something you can rock up to a store in Ireland and buy. Also there's a shortage of the cells used to make these batteries. Best bet is to go back to the manufacturer. Shipping these batteries is also costly and tricky and you can expect to be stung for customs duty. You could get someone to make one up for you, but it would probably cost more.



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