EM10 Battery Pack – B Hidden Down-Tube 36V/48V Li-ion

$849.99

E-Bike / Battery Pack

EM10 Battery Pack — Hidden Down-Tube

A fully hidden down-tube battery pack engineered for the EM10 e-bike frame. Built by TanLuZhe with up to 42 Samsung 21700 Li-ion cells for ~720 Wh, it slots inside the down-tube with no external brackets, preserving frame aesthetics and balanced handling. A down-taken system with double lock allows easy removal for charging while adding theft protection, and CE / UN38.3 certification keeps it compliant for safe transport. Choose 36 V 20 Ah for endurance or 48 V 15 Ah for power.

Key Features

▪ Fully Hidden Down-Tube Mounting — fits inside the EM10 frame with no external brackets, preserving aesthetics and balanced handling.
▪ Samsung 21700 Li-ion Cells — up to 42 cells (10S4P for 36 V / 13S3P for 48 V) for high energy density and long cycle life.
▪ Dual Voltage Options — 36 V 20 Ah (~720 Wh) for endurance or 48 V 15 Ah (~720 Wh) for power and hill-climbing.
▪ Down-Taken System & Double Lock — easy removal for charging with enhanced theft protection.
▪ CE & UN38.3 Certified — meets international electrical safety and battery transport standards.
▪ TanLuZhe Build (~4.0 kg) — high-capacity cells in a solid casing balancing energy storage and durability.

Specifications

Brand	TanLuZhe
Compatibility	EM10 e-bike frame
Mounting Type	Fully hidden in the frame down-tube
Removal & Locking	Down-taken system with double lock
Battery Cells	Samsung 21700 Li-ion, up to 42 cells (10S4P for 36 V / 13S3P for 48 V)
Chemistry	Lithium-ion (Li-ion)
Endurance Option	36 V 20 Ah (27.5–42 V) — ~720 Wh
Power Option	48 V 15 Ah (36–54.6 V) — ~720 Wh
Charging Time	36V 20Ah: 6–7 h · 48V 15Ah: 5–6 h (3A, DC 2.1 mm connector)
Certifications	CE, UN38.3
Weight	Approx. 4.0 kg

What's in the Box

EM10 hidden down-tube battery pack
Charger (3A, DC 2.1 mm connector)

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