Radio Communication Battery TD-Tech BTY3500Li20 Replacement Battery for TD Tech EP631
- Alison Duff
- 2 days ago
- 2 min read
Introducing the TD-Tech BTY3500Li20 Radio Communication Battery – the ultimate replacement power solution designed specifically for the TD Tech EP631. Engineered to deliver exceptional performance, this high-quality battery ensures your device keeps up with your on-the-go lifestyle. It’s the perfect upgrade for users seeking long-lasting power and enhanced productivity.
Rest assured that the TD-Tech BTY3500Li20 Battery meets or surpasses all original manufacturer specifications, providing the same reliability you expect from your TD-Tech device. Each battery is brand new, undergoes rigorous testing, and is backed by a full 1-year warranty. We guarantee top-tier quality, safety, and satisfaction with every purchase.
Upgrade your TD Tech EP631 with confidence and enjoy uninterrupted performance throughout your day. Whether for work or leisure, this battery delivers consistent power and durability. Don’t settle for less – choose a trusted replacement that combines quality, value, and peace of mind.

Product Specifications:
Capacity:3540mAh
Voltage:3.8V
Type:Li-ion
* Quality battery uses an intelligent control chip, which comes with higher performance and reliability.
* Longer run-time and battery life - thanks to modern Lithium technology without memory effect.
* Built-in protection circuitry ensures its stability and safety, fast charge but slow power consumption.
* Guaranteed safety: Protected against Short-circuits, Overheating and Overvoltage.
* Each cell is separately tested in order to ensure professional standards are met.
* 100% compatible in replacing your original battery.
* Designed to meet or exceed the runtime of the original battery.
Replaces these part numbers:
BTY3500Li20
Other Online Stores:
U.K ------------------------ TD-Tech BTY3500Li20 Battery
Poland ------------------------ Alternatywna bateria do TD-Tech BTY3500Li20
Spain ------------------------ Batería para TD-Tech BTY3500Li20
France ------------------------ TD-Tech BTY3500Li20 Batteries
Italia ------------------------ TD-Tech BTY3500Li20 Batteria
Japan ------------------------ TD-Tech 3540mAh 互換用バッテリー
Compatible with the following models:
for TD Tech EP631
for TD Tech EP631S
for TD Tech EP682
Features of Our Replacement Battery:
1. Each Radio Communication Battery TD-Tech BTY3500Li20 replacement battery unit is made of high-quality lithium-ion cells for longer last time.
2. The battery is up to standard and fully compatible with original specifications.
3. All our batteries are certified by CE, UL, ROHS, ISO9001/9002 as safe products.
4. The interface metal and fixed insulator of the battery are made of good materials to ensure stable current input and durability.
5. We specialize in providing high-quality replacement batteries.
How to choose correct Radio Communication Battery BTY3500Li20 battery?
+ This page list all type rechargerable battery for BTY3500Li20, make sure this battery's picture is most the same as your original BTY3500Li20 battery.
+ BTY3500Li20 battery have genuine battery cells and original battery protection board, which means more charge cycle times and excellent compatibility.
+ Replacement rechargerable Radio Communication Battery BTY3500Li20 battery is a very good choose too, beacuse you don't need to maintain it carefully, it is in stock all the time, you can repalce it with lower price any time.
+ Please contact us when you can't sure this is a correct Radio Communication Battery BTY3500Li20 battery.



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