[
    {
        "name": "small alkaline pack",
        "weight": "0", "capacity": "50"
    },
    {
        "name": "big alkaline pack",
        "weight": "2", "capacity": "200"
    },
    {
        "name": "small lithium pack",
        "weight": "5", "capacity": "150", "recharge": "1"
    },
    {
        "name": "big lithium pack",
        "weight": "15", "capacity": "500", "recharge": "1"
    },
    {
        "name": "lead battery",
        "weight": "20", "capacity": "800", "recharge": "1"
    },
    {
        "name": "small molten salt battery",
        "weight": "40", "capacity": "1500", "recharge": "1"
    },
    {
        "name": "big molten salt battery",
        "weight": "70", "capacity": "2000", "recharge": "1"
    },
    {
        "name": "atomic battery",
        "weight": "150", "capacity": "10000"
    }
]