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Keyde BI3611 Water Bottle Ebike Battery 36V 10.5Ah Lithium Electric Bike Battery

€399,00

Tax and shipping included

Highlights:

Beautiful Water Bottle Design
Built-in BMS Protection System
Ultra Lightweight – Only 1.8kg

Application Commonly used for S P or Thru-axle series As range-extended battery for ALL-IN-ONE motors(includes cable)

Charger Plug Standard EU UK US

⚠️ Please note: Keyde products are not available for shipping to France, as Keyde has an exclusive distribution agreement with a local partner in France.

📦 Order Review: Within 24 hours

🚚 Dispatch: 1-3 business days

✈️ Air Freight: 8-15 business days

🏠 Delivered

📋 Please Note: During the order review process, we may send you a compatibility check via Email or WhatsApp. Please keep an eye on your inbox. (Make sure to provide your email at checkout, or a phone number with WhatsApp enabled.)

• EU/UK: Duties & Taxes Included - No hidden fees at checkout
• Global Air Shipping: 8-15 Days - Free to most regions
• Compatibility Check - Engineers verify fit before shipping
• Tracking Included - Stay updated on your delivery

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• 14-Day Money-Back Guarantee - EU/UK legal cooling-off period
• No Hidden Fees - No restocking or processing charges
• 1-Year Warranty - All products covered (selected items up to 2 years)
• Quick Refunds - Within 7-10 business days

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Need assistance?
Our technical support team specializes in:
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📧 Contact: support@diyebicycle.com
⏰ Response time: Within 24 hours

36

Rated Voltage (V)

10.5

Capacity (Ah)

378

Energy (Wh)

20/40

Maximum Current (A)

3.5

Charge Time (h)

≥ 1000

Cycle Life (times)

1.8

Weight (kg)

80-120

Reference Range (km)

Parameter	BI3307	BI3311	BI3607	BI3611	BI3615	BI3614	BI3620
Rated Voltage (V)	33V	33V	36V	36V	36V	36V	36V
Capacity (Ah)	7	10.5	7	10.5	15	14	20
Voltage Range (V)	28-42	28-42	28-42	28-42	28-42	28-42	28-42
Energy (Wh)	231	346.5	252	378	540	504	720
Maximum Current (A)	20A	20A	20A	20A/40A	40A	40A	40A
Charge Current (A)	3A	3A	3A	3A	3A	3A	3A
Charge Time (h)	2-3	3-4	2-3	3-4	4-5	4-5	6-8
Cycle Life (times)	≥1000	≥1000	≥1000	≥1000	≥1000	≥1000	≥1000
Weight (kg)	1.2	1.8	1.2	1.8	2.5	2.5	3.0
Reference Range (km)	50-70	80-100	50-80	80-120	120-180	110-160	150-230

About This Item

Keyde BI3611 Water Bottle Ebike Battery – 36V 10.5Ah

Upgrade your bicycle to an electric bike with the Keyde BI3611 water bottle ebike battery. This 36V 10.5Ah lithium battery is the perfect choice for electric bike conversion kits, combining a sleek water bottle design with powerful, safe performance. The package includes a charger and holder for a complete, ready-to-use solution.

Key Features

🎨 Beautiful Water Bottle Design – Stylish water bottle shaped appearance that blends seamlessly with your bike frame
⚖️ Ultra Lightweight – Only 1.8kg – Easy to carry and install, ideal for daily commuting and long-distance rides
🛡️ Built-in BMS Protection System – Protects against over-voltage, under-voltage, charging over-current, output over-current, high temperature, low temperature, and short circuit; extends battery life for long-term reliability
⚡ 36V 10.5Ah Lithium Battery – High-capacity power for your e-bike conversion kit, delivering extended range per charge
📦 Includes Charger & Holder – Everything you need to get started right out of the box

Why Choose the BI3611?

The Keyde BI3611 is engineered for cyclists who demand both performance and portability. At just 1.8kg, this lightweight ebike battery is one of the lightest 36V 10.5Ah water bottle battery packs on the market. Whether you're building a DIY electric bike or replacing an old e-bike battery, the BI3611 delivers reliable power with built-in safety protection.

Compatible With

The BI3611 36V lithium ion battery for electric bicycle is compatible with most 36V electric bike conversion kits, hub motors, and mid-drive systems. It is an ideal e-bike battery replacement for riders looking for a long range electric bike battery solution.

🔋 Built-in BMS Protection System

Our battery features a comprehensive 8-point Battery Management System (BMS) to ensure safe and reliable performance in all conditions:

Over-Voltage Protection — Prevents damage from excessive charging voltage
Under-Voltage Protection — Stops discharge before the battery is critically depleted
Charging Over-Current Protection — Cuts off unsafe current levels during charging
Output Over-Current Protection — Guards against short-term current surges during use
High Temperature Protection — Automatically shuts down if temperature exceeds safe limits
Low Temperature Protection — Prevents charging in freezing conditions to protect cell integrity
Short Circuit Protection — Instantly disconnects power in the event of a short circuit
Active Balancing — Continuously equalizes cell voltage for longer battery life and consistent performance

Sturdy and Easy to Install

Compatible with 99% of bicycles.

If your bike has a standard bottle cage mount on the frame, our product can be installed.

Only compatible with Keyde motors

Application

Commonly used for S, P or Thru-axle series(except P110 motors)
As range-extended battery for ALL-IN-ONE motors(includes cable)

Battery Size Comparison

Portable | Light | Small

Has the large capacity.
Long cruising range.
Compatible with: Electric bike conversion kits.
Battery includes charger and holder.

EU CE Certification

Reliable Quality

Possessing Multiple International Invention Patents

Widely Recognized in The International Market

COMPLETE KIT MATCHING REFERENCE

Rear Motor Rim / Rear Motor
Battery
BBC1T1 Cable
APP / Display

(Note: the Keyde APP and the BTD260 display cannot be used at the same time.)

Shop This Kit View All Kits

Keyde BI3611 Water Bottle Ebike Battery Specification

Item No.	BI3611
Rated Voltage	36V
Rated Capacity	10.5Ah
Capacity	378Wh
Cycle life	≥1000 times
Charging mode	CC-CV
Charging current	3A
Charging time	3-4h
Max current	40A
Temperature-charge	-10℃~55℃
Temperature-output	-10℃~75℃
Storage temperature	-10℃~45℃
Water proof	IP66
BMS	Yes
Position	Water holder
Magnetic fixation	Optional
Weight	1.8Kg

Frequently asked questions

EU & UK Customers: No additional fees!

We provide full customs clearance service for all 27 EU countries + United Kingdom:

✅ Price includes all taxes and duties - The price you see is the final price
✅ We handle customs fees - No additional customs fees for you
✅ We pay duties and taxes - All import duties and VAT paid by us
✅ No hidden fees - No unexpected additional charges
✅ Smooth delivery - We handle all customs procedures for fast delivery

For customers outside EU & UK: You are responsible for any applicable customs duties, taxes, and import fees in your country.

Our full customs clearance service covers all 27 EU countries + United Kingdom:

Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and United Kingdom.

For EU & UK customers, we ship DDP (Delivered Duty Paid), meaning all customs duties, taxes, and import fees are included in your purchase price. You won't receive any surprise bills from customs or delivery companies.

We use a pre-authorization payment process for all orders:

Friction drives & conversion kits:

Your card is pre-authorized at checkout
We verify compatibility within 24 hours
Payment is captured after compatibility confirmation
If incompatible, the pre-authorization is released (no charge)

All other products:

Your card is pre-authorized at checkout
Payment is captured within 24 hours
No compatibility verification needed

You'll receive email confirmation once payment is processed.

Pre-authorization temporarily reserves funds on your card without charging you immediately. This allows us to verify compatibility for technical products and ensure order accuracy before final payment. The charge is completed within 24 hours for standard items, or after compatibility confirmation for friction drives and conversion kits.

We process and ship most orders within 1-3 business days. Special products may require 7-14 days processing time.

Delivery time depends on your shipping method:

EU Express Delivery (EU 27 only): 2-8 days from our France factory
Standard Air Shipping: 8-15 business days from Hong Kong
Sea Freight (for battery kits): 15-45 business days from Hong Kong

Please note: Friction drives and conversion kits require a 24-hour compatibility verification before shipping.

You'll receive tracking information via email as soon as your order ships, typically within 1-3 business days after placing your order.

Please note: Your tracking may initially show "Awaiting Pickup" or similar status until the package clears customs and enters the local delivery network. This is normal and doesn't indicate a delay.

Total delivery time = processing time + shipping time.

Processing: 1-3 business days for most items (7-14 days for special products)

Shipping time depends on your method:

EU Express Delivery (EU 27 only): 2-8 days
Standard Air Shipping: 8-15 business days
Sea Freight (battery kits): 15-45 business days

Total estimated delivery:

EU Express: 3-11 days total
Standard Air: 9-18 business days total
Sea Freight: 16-48 business days total

Note: Friction drives and conversion kits require 24-hour compatibility verification, which may add one day to processing time.

Tracking updates may be delayed during customs clearance, especially for international shipments. If your tracking hasn't updated for several days after the initial scan, please contact us at support@diyebicycle.com.

Yes! We welcome special orders and product requests. Our procurement team can source products that align with our DIYebicycle focus.

For out-of-stock items:

Contact us at support@diyebicycle.com with the product you need
We'll provide an estimated restock or procurement timeline
You'll be notified as soon as the item is available

For product requests: If you're looking for a product we don't currently carry, we'd love to hear from you! Products that fit our catalog may qualify for our Early Adopter Program, where you can:

Be the first to test new products
Receive significant discounts as a trial user
Help shape our product selection

Simply email us at support@diyebicycle.com with your product request and we'll let you know if it qualifies.

Keyde BI3611 Water Bottle Ebike Battery 36V 10.5Ah Lithium Electric Bike Battery

About This Item