Your Browsing History
- Free 30-day Returns
$28.99
Meet Your Seller
New 800mAh 3.7V Li-ion Battery for Ascom D63 DH7 DECT 3735 Mitel 5614 5634 Replaces 490933A 660497 Grade A Cells 12-Month Warranty
- Keep Your DECT Phone Running All Shift Don't let a dead battery interrupt critical communications. This replacement battery delivers reliable power for Ascom and Mitel handsets perfect for healthcare, hospitality, and warehouse environments where every call matters.
- Exact Fit for 15+ Phone Models Compatible with Ascom D63, D63 Protector, D63 Messenger Lite, D63 Talker Lite, DH7, DH7-ADAA, DH7-ABBA, DH7-AABA, DECT 3735, i63, Innovaphone IP73, Mitel 5614, and Mitel 5634. Replaces OEM part numbers 490933A and 660497.
- 800mAh 3.7V Li-ion Premium Grade A Cells Delivers 2.96Wh of reliable power. Up to 500 recharge cycles. No memory effect charge anytime without capacity loss. Fits perfectly with your existing charger.
- Built-in Multi-Protection Safety Features short-circuit and overcharge protection. CE and RoHS certified for safety and reliability. High-quality Li-ion cells ensure stable voltage and longer lifespan.
- Compact & Lightweight Design Dimensions: 79.72 x 47.16 x 10.30mm. Weight: approx. 29-79g. Some versions include a matching black back cover.
- 100% Tested & 12-Month Warranty Each battery is individually tested before shipment to ensure quality and performance. Backed by a full 12-month warranty and 30-day hassle-free returns.
+
+
Overview
Specs
Reviews
Any questions? Our AI beta will help you find out quickly.
Try me now
Why You Need This Battery
Your Ascom or Mitel DECT cordless phone is a critical communication tool in fast-paced environments like hospitals, hotels, and warehouses. When the original battery starts to fail shorter talk time, unexpected shutdowns, or the handset refusing to hold a charge productivity suffers. Replacing it with a cheap, lowquality battery often leads to false capacity readings, swelling, or failure within months.
This replacement battery solves that problem delivering true 800mAh / 2.96W h capacity with brand new Grade A Li-ion cells. What you see is what you get.
Important Compatibility Check
Compatible Models Compatible Models
Ascom D63 Ascom DH7-ADAA
Ascom D63 Protector Ascom DH7-ABBA
Ascom D63 Messenger Lite Ascom DH7-AABA
Ascom D63 Talker Lite Ascom DECT 3735
Ascom DH7 Ascom i63
Innovaphone IP73 Mitel 5614
Mitel 5634
Replaces OEM part numbers:
Common P/N
490933A
660497
Innovaphone 490933A
Specification Detail
Model CS-AYD630CL / CP-MTL03 Compatible
Chemistry Li-ion (Li-Polymer available)
Voltage 3.7V
Capacity 800mAh / 2.96W h
Dimensions 79.72 × 47.16 × 10.30 mm
Weight Approx. 29-79g
Color Black
Safety Standards CE, RoHS
Condition Brand new Grade A cells
Warranty 30day return + 12month warranty
What a Cheap or Failing Battery Costs You
Interrupted calls Phone dies during critical communications.
Short talk time Handset lasts only a few hours between charges.
Swelling Dangerous bulging that can crack the phone housing.
System errors Inaccurate battery percentage readings and unexpected power-offs.
What Our Battery Delivers
Feature Cheap Generic Our Premium Battery
True Capacity Often under 700mAh 800mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Talk Time 46 hours 810+ hours
Swelling Risk High within months Low, proper BMS
Safety Standards None CE, RoHS
Warranty None or 30 days 30day return + 12month
Who Is This Battery For?
Healthcare workers using Ascom D63/DH7 phones for patient communication.
Hospitality staff relying on Mitel 5614/5634 cordless handsets.
Warehouse and logistics teams using DECT phones for daily operations.
IT departments managing fleets of Ascom and Mitel cordless phones.
Anyone whose original 490933A or 660497 battery is swollen or no longer holds a charge.
Why Choose Our Battery?
Genuine Grade A Li-ion cells Not recycled or refurbished.
Exact OEM specifications Matches original 3.7V / 800mAh design.
Advanced safety protection Short-circuit and overcharge protection built in.
100% tested Each unit is tested for capacity and cycle life before shipping.
12month warranty Buy with confidence. If anything goes wrong, we've got you covered.
Your Ascom or Mitel DECT cordless phone is a critical communication tool in fast-paced environments like hospitals, hotels, and warehouses. When the original battery starts to fail shorter talk time, unexpected shutdowns, or the handset refusing to hold a charge productivity suffers. Replacing it with a cheap, lowquality battery often leads to false capacity readings, swelling, or failure within months.
This replacement battery solves that problem delivering true 800mAh / 2.96W h capacity with brand new Grade A Li-ion cells. What you see is what you get.
Important Compatibility Check
Compatible Models Compatible Models
Ascom D63 Ascom DH7-ADAA
Ascom D63 Protector Ascom DH7-ABBA
Ascom D63 Messenger Lite Ascom DH7-AABA
Ascom D63 Talker Lite Ascom DECT 3735
Ascom DH7 Ascom i63
Innovaphone IP73 Mitel 5614
Mitel 5634
Replaces OEM part numbers:
Common P/N
490933A
660497
Innovaphone 490933A
Specifications
You Can TrustSpecification Detail
Model CS-AYD630CL / CP-MTL03 Compatible
Chemistry Li-ion (Li-Polymer available)
Voltage 3.7V
Capacity 800mAh / 2.96W h
Dimensions 79.72 × 47.16 × 10.30 mm
Weight Approx. 29-79g
Color Black
Safety Standards CE, RoHS
Condition Brand new Grade A cells
Warranty 30day return + 12month warranty
What a Cheap or Failing Battery Costs You
Interrupted calls Phone dies during critical communications.
Short talk time Handset lasts only a few hours between charges.
Swelling Dangerous bulging that can crack the phone housing.
System errors Inaccurate battery percentage readings and unexpected power-offs.
What Our Battery Delivers
Feature Cheap Generic Our Premium Battery
True Capacity Often under 700mAh 800mAh (tested)
Cells Recycled or lowgrade Brand new Grade A
Talk Time 46 hours 810+ hours
Swelling Risk High within months Low, proper BMS
Safety Standards None CE, RoHS
Warranty None or 30 days 30day return + 12month
Who Is This Battery For?
Healthcare workers using Ascom D63/DH7 phones for patient communication.
Hospitality staff relying on Mitel 5614/5634 cordless handsets.
Warehouse and logistics teams using DECT phones for daily operations.
IT departments managing fleets of Ascom and Mitel cordless phones.
Anyone whose original 490933A or 660497 battery is swollen or no longer holds a charge.
Why Choose Our Battery?
Genuine Grade A Li-ion cells Not recycled or refurbished.
Exact OEM specifications Matches original 3.7V / 800mAh design.
Advanced safety protection Short-circuit and overcharge protection built in.
100% tested Each unit is tested for capacity and cycle life before shipping.
12month warranty Buy with confidence. If anything goes wrong, we've got you covered.
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by Ebuy limited Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
LOADING...