This is a rough estimate for readers to understand the necessary expenses. Please note that the costs may vary based on actual, real-time conditions. Tax and labour are not included in price estimates.
Cost of an e-bike – $1500 to $3000 (Depending on the type of bike and battery capacity)
Cost of helmet, lock, rain cover etc. – $200
Cost of charging – $0.125 for 1KWh

E.g. Consider a person using an e-bike to commute 30 km daily on a 48V/21AH e-bike, which gives approximately 60 Km per full charge.
In a five-day week, the bike is charged 2.5 times. So, in this case, the cost of fully charging the bike in a week is 2.5 x $0.125 = $0.3125

Maintenance expenses on an e-bike (based on usage of the bike)
Tire replacement – $100 to $150
Brake pads replacement – $100

Battery replacement
Lead-acid battery (frequency depends on usage; Avg every three years) – $600 to $1000 (Based on the capacity of the battery pack)
Lithium battery (frequency depends on usage; Avg every five years) – $900 to $2000 (Based on the capacity of the battery pack)

Although insurance is not mandatory, it is not bad to consider insurance for theft or accidents.
Insurance monthly instalments are considerably lower than car insurance rates.