The B80 is pretty pricey for what you get. I was thinking of making a budget version of it and was wondering if the below would work.
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I would take the below battery
Redodo 12V 100Ah Mini LiFePO4 - the Smallest Lithium Battery -
Use the following cable (4 meters) to connect to the battery and to the EB70s
https://www.aliexpress.us/item/3256803869344744.html?gatewayAdapt=glo2usa -
Then when the battery to low disconnect it and recharge it using the below charger.
https://www.amazon.ca/Lifepo4-Lithium-Battery-Maintainer-Motorcycle/dp/B0CL4DWD4S?keywords=lifepo4%2Bcharger&language=en_CA&linkCode=sl1&linkId=3fa1777adebc5284176513c272280ed5&qid=1682360344&ref_=as_li_ss_tl&smid=A32LIMT42X7BEN&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUExOUJOSVZCWUE4MlJYJmVuY3J5cHRlZElkPUEwMjE1ODE2SzNRQTlBQzFCTTE3JmVuY3J5cHRlZEFkSWQ9QTEwMzkzMTkxODE3ME5LT0ZJU0hZJndpZGdldE5hbWU9c3BfYXRmJmFjdGlvbj1jbGlja1JlZGlyZWN0JmRvTm90TG9nQ2xpY2s9dHJ1ZQ&sr=8-2-spons&tag=cruoffdut-20&ufe=app_do%3Aamzn1.fos.b06bdbbe-20fd-4ebc-88cf-fa04f1ca0da8&th=1
Would that work? Am I missing something here?