NO.1 If not for special needs, please choose lead-acid battery.
Because compared to lithium batteries, they are more safe and stable. Although lithium battery has more power to reach longer distance, it is much more likely to cause a fire while using. If you really lithium batteries for work, please, add BMS system inside to reduce the risk of battery self ignition.
NO.2 Pay attention to their weight. If the weight of a battery is unusually light , it indicates that the capacity inside may be in a low level. Then it could be a bad choice for you.
NO.3 Pay attention to the voltage. Generally, there are 48V, 60V and 72V for e-bikes in the market. And for 1 battery,there are 12 volts. They are connected to reach high volts. If a long distance is required, 72V is good choice. But in fact,60V is enough for daily use.
Now, I’d like to recommend you TCS battery, a 25 year old brand, with reliable quality.
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