EC1 /EM5 /EM6 Battery Pack – B Hidden Down-Tube 36V/48V Li-ion
EC1 / EM5 / EM6 Battery Pack — Hidden Down-Tube
A fully hidden down-tube battery pack designed to fit the EC1, EM5, and EM6 e-bike frames. Built by NewQingNian with up to 40 Samsung 21700 Li-ion cells for ~720 Wh, it integrates inside the down-tube with no external brackets for a clean look and balanced handling. A down-taken system with double lock allows quick 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
- ▪ Fits EC1 / EM5 / EM6 Frames — designed to sit inside the down-tube with no external brackets.
- ▪ Samsung 21700 Li-ion Cells — up to 40 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 climbing.
- ▪ Fully Hidden Mounting — maintains the bike's clean look and balanced handling.
- ▪ Down-Taken System & Double Lock — quick removal for charging or maintenance with enhanced theft protection.
- ▪ CE & UN38.3 Certified — certified for international electrical safety and safe battery transport.
Specifications
| Brand | NewQingNian |
| Compatibility | EC1 / EM5 / EM6 e-bike frames |
| 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 40 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. 3.9 kg |
What's in the Box
- EC1 / EM5 / EM6 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.
Product Information
Product Information
Shipping & Returns
Shipping & Returns
EC1 /EM5 /EM6 Battery Pack – B Hidden Down-Tube 36V/48V Li-ion
EC1 /EM5 /EM6 Battery Pack – B Hidden Down-Tube 36V/48V Li-ion
EC1 / EM5 / EM6 Battery Pack — Hidden Down-Tube
A fully hidden down-tube battery pack designed to fit the EC1, EM5, and EM6 e-bike frames. Built by NewQingNian with up to 40 Samsung 21700 Li-ion cells for ~720 Wh, it integrates inside the down-tube with no external brackets for a clean look and balanced handling. A down-taken system with double lock allows quick 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
- ▪ Fits EC1 / EM5 / EM6 Frames — designed to sit inside the down-tube with no external brackets.
- ▪ Samsung 21700 Li-ion Cells — up to 40 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 climbing.
- ▪ Fully Hidden Mounting — maintains the bike's clean look and balanced handling.
- ▪ Down-Taken System & Double Lock — quick removal for charging or maintenance with enhanced theft protection.
- ▪ CE & UN38.3 Certified — certified for international electrical safety and safe battery transport.
Specifications
| Brand | NewQingNian |
| Compatibility | EC1 / EM5 / EM6 e-bike frames |
| 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 40 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. 3.9 kg |
What's in the Box
- EC1 / EM5 / EM6 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.
Original: $439.00
-65%$439.00
$153.65Product Information
Product Information
Shipping & Returns
Shipping & Returns
Description
EC1 / EM5 / EM6 Battery Pack — Hidden Down-Tube
A fully hidden down-tube battery pack designed to fit the EC1, EM5, and EM6 e-bike frames. Built by NewQingNian with up to 40 Samsung 21700 Li-ion cells for ~720 Wh, it integrates inside the down-tube with no external brackets for a clean look and balanced handling. A down-taken system with double lock allows quick 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
- ▪ Fits EC1 / EM5 / EM6 Frames — designed to sit inside the down-tube with no external brackets.
- ▪ Samsung 21700 Li-ion Cells — up to 40 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 climbing.
- ▪ Fully Hidden Mounting — maintains the bike's clean look and balanced handling.
- ▪ Down-Taken System & Double Lock — quick removal for charging or maintenance with enhanced theft protection.
- ▪ CE & UN38.3 Certified — certified for international electrical safety and safe battery transport.
Specifications
| Brand | NewQingNian |
| Compatibility | EC1 / EM5 / EM6 e-bike frames |
| 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 40 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. 3.9 kg |
What's in the Box
- EC1 / EM5 / EM6 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.
