Battery for Fiido D1, D2, D2S, D4S 36 V 10.5 Ah 378 Wh (Electric Bike Battery)

Electric bike battery for Fiido D1, D2, D2S and D4S: 36 V, 10.5 Ah, 378 Wh. A 10S3P Li-Ion pack with LG or Samsung cells, a balancing BMS with triple protection, an XT60 output and 15 A maximum current. It replaces a worn-out battery or works as a spare pack for longer rides.

Technical specification

Which bikes does this battery fit?

This battery is designed for Fiido D1, Fiido D2, Fiido D2S and Fiido D4S electric bikes (36 V). Have a different model? Write to info@evzero.eu and we will check voltage and connector compatibility.

Why choose it

• Longer range: 378 Wh of energy in a 36 V 10.5 Ah pack. Real-world range depends on rider weight, terrain, temperature and assist level.
• Safer riding and charging: the balancing BMS equalizes voltage between cells, and triple protection guards against over-discharge, overcharge and short circuit.
• Durable LG and Samsung cells: according to the cell manufacturer, they retain about 80% of capacity after 1000 discharge cycles.
• Charging as before: use a standard charger plugged into the charging socket, just like today.
• Ready to install: the battery comes with the parts needed for installation and a nameplate showing full parameters.
• Polish manufacturer: every City Lion product goes through quality control before shipping.

Safe use

• Do not disassemble the pack or open the casing.
• Do not use or store the battery at temperatures above 60°C (140°F).
• Fully charge a new battery before first use. Charge to 42 V (10S Li-Ion).
• Take a used battery to an electronic waste collection point. Do not throw it away with household waste.

Frequently asked questions

Does this battery fit the Fiido D1, D2, D2S and D4S?

Yes, it is a 36 V 10.5 Ah battery designed for these models.

How many watt-hours is a 36 V 10.5 Ah battery?

378 Wh (36 V times 10.5 Ah).

How do I charge the battery?

With a standard charger for 10S Li-Ion packs (42 V end voltage), plugged into the charging socket.

What protections does the battery have?

The balancing BMS protects against over-discharge, overcharge and short circuit.

Is this the original battery from the bike manufacturer?

No. It is a City Lion pack intended as a replacement or spare. The names Fiido D1, D2, D2S and D4S are used only to indicate compatibility. Fiido is a trademark of its owner.