Twitter Bikes
1EM10 Battery Pack – B Hidden Down-Tube 36V/48V Li-ion
$644.00
/
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)
We reserve the right to make changes to product information at any time without prior notice, including specifications, models, colors, and materials.