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401225 90mAh 3.7V Li‑Polymer Battery For Bluetooth Wearable Smart Devices

Name: 401225 90mAh 3.7V Li‑Polymer Battery For Bluetooth Wearable Smart Devices
Brand: Shenzhen Vats Power Source Limited
SKU: 401225
Price: 0.98 USD
Availability: InStock

Brand Name:	VATS Battery or Neutral
Model Number:	401225
MOQ:	10
Price:	$0.98-1.49
Delivery Time:	7 work days
Payment Terms:	T/T

Detail Information

Product Description

Ratings & Reviews

Detail Information

Place of Origin:

Guangdong, China

Certification:

UL1642//UL2054/CB/KC/PSE/CE/ROHS/UN38.3/MSDS

Capacity:

90mAh

Battery Size:

4±0.2*12±0.5*25±2.5 Mm

Discharge Rate:

0.5C

Max Charge Voltage:

4.2V

Voltage:

3.7V

Cycle Life:

500 Charge Cycles

Packaging Details:

Industrial cartons compliant with air & sea shipping standards

Supply Ability:

Ships in 7 Business Days (In-Stock) / 30 Business Days (Out-of-Stock)

Highlight:

90mAh Li-Polymer battery for Bluetooth

3.7V wearable device battery

smart device Li-Polymer battery

Product Description

401225 90mAh 3.7V Li‑Polymer Battery For Bluetooth Wearable Smart Devices

401225 90mAh 3.7V Li‑Polymer Battery for Bluetooth & Wearable Smart Devices

Specifications

Item	Details
Model	HZ401225
Battery Type	Lithium polymer battery
Dimension	4±0.212±0.525±2.5 mm (ThicknessWidthLength)
Nominal Capacity	90mAh, custom capacity & size available
Nominal Voltage	3.7V
Max Cut‑off Voltage	4.2V
Discharge Current	Standard: 0.2C‑0.5C; Max: 1C
Connector	JST / Molex, customizable
Cycle Life	Up to 500 charge‑discharge cycles
Lead Time	3‑7 days for stock items, 2‑3 weeks for bulk orders
Package	Industrial carton for air & ocean shipping compliance

Product Overview

This reliable lithium polymer battery delivers stable 3.7V power for compact Bluetooth and wearable gadgets. It addresses short runtime issues for small-size electronics. Our lithium ion battery cell fits tight-space hardware without sacrificing usable capacity.

Key Features

Compact High-density Design

Slim form factor fits tiny device housings. You get steady 90mAh power without redesigning your product shell.
Stable Safe Discharge Performance

Consistent 0.2C‑0.5C standard discharge output. Your wearable devices run smoothly without unexpected power drops. This 3.7V wearable device battery keeps daily-use electronics working reliably.
Flexible Connector & Custom Options

Choose JST or Molex connectors as your project demands. Custom dimensions, capacity and voltage are supported for your unique hardware projects.
Decent Long Cycle Lifespan

Reaches 500 cycles under proper usage. Less frequent battery replacement lowers your long-term material cost for finished goods.
Factory Direct Supply & Sample Available

Sourced directly from battery manufacturer. You can order samples for lab testing before large-volume procurement.
Shipping-compliant Packaging

Industrial carton meets international air and sea transport standards. Reduce risk of hold-ups during cross-border shipment.

Product Applications

This lithium polymer battery suits a wide range of compact consumer electronics for home use, daily commuting and outdoor activities.

Car Dash Cameras GPS Navigators Smart Home Appliances Massage Units Digital Cameras Spray Devices Dental Irrigators Smart Bracelets Blackhead Removal Tools Remote Controllers Bluetooth Speakers Fingerprint Locks Electric Hair Clippers Training Collars Pest Repellers Camping Lights Robot Vacuums Electric Toothbrushes Pet Water Dispensers Electric Shavers Mini Handheld Fans

Frequently Asked Questions

What devices can this 3.7V wearable device battery fit for?

It is built for small-size 3.7V electronics including Bluetooth modules, smart bracelets and compact portable gadgets. Check dimension and voltage match before installation.

Can I get samples for performance testing?

Yes. We offer sample units so you can validate this lithium ion battery cell with your hardware before bulk purchase.

What is the typical lead time for bulk orders?

Stock items ship within 3‑7 working days. Custom bulk orders take 2‑3 weeks for production.

Does this battery support custom connectors or dimensions?

Yes. JST and Molex connectors are optional. We also support custom size, capacity and voltage for your project.

How many charge cycles can this lithium polymer battery sustain?

It can reach around 500 cycles under correct charging and discharging operation.

Is the package okay for international air shipping?

Yes. Our industrial carton packaging follows global air and ocean shipping standards for lithium batteries.

What maximum discharge current can this battery handle?

Standard discharge current is 0.2C‑0.5C, peak max discharge current reaches 1C for short-time operation.

What should I do if the battery fails after receiving goods?

Contact our support team. Please share order number and defect description so we can assist you quickly.

After-sales Guarantee

We stand behind our lithium polymer battery products.

Sample testing is welcomed to verify real-world performance before mass procurement
Strict pre-shipment inspection for every batch to reduce defective rate
Professional technical support team for your hardware matching questions
Follow local return policy for quality-related defects
All packing meets international lithium battery shipping requirements to avoid customs delays

Ratings & Review

Overall Rating

5.0

Based on 50 reviews for this supplier

Rating Snapshot

The following is the distribution of all ratings

5 stars

100%

4 stars

3 stars

2 stars

1 stars

All Reviews

Markus K.

Germany May 15.2026

Helpful (45)

Ich war anfangs echt ein bisschen skeptisch, weil man im Netz ja viel zu hören bekommt, wenn es um Li-Polymer-Akkus geht. Aber der originale E66 Akku hier? Junge, Junge... das Teil ist ein Biest! Ich habe die Zelle jetzt seit ein paar Wochen in meinem DIY-Solar-Projekt verbaut und ausgiebig getestet. Was soll ich sagen: Die 66ah sind absolut real, kein Fake-Wert! Die Kapazität ist stabil, die Spannung von 3.7V bleibt auch unter Last super konstant und das Teil wird beim Laden kaum handwarm. Man merkt einfach sofort, dass die Verarbeitungsqualität stimmt und das PCB-Schutzboard ordentlich mitgedacht wurde. Für den Preis kriegt man hier in Deutschland aktuell kaum was Besseres. Versand war auch fix, Verpackung war bombensicher – so muss das laufen! Wer verlässliche Power sucht, kann hier echt bedenkenlos zugreifen. Von mir gibt's eine klare Kaufempfehlung und verdiente 5 Sterne. Daumen hoch!

Owen

Canada Apr 7.2026

Helpful (86)

I’ve been using this 357090 3.7V 2500mAh lipo battery for a few weeks now, and I’m really satisfied with it. It is steady-quality rechargeable lithium polymer batteries that perfectly match the rated voltage and capacity. Output efficiency is great, which helps me save a lot of working time. Build quality feels solid too, no weird noises or faults during daily operation. Shipping was fast and the packaging was protective. For small-scale battery production and copying work, this is absolutely a practical and cost-effective pick. I’d definitely recommend it to fellow business partners and will consider reordering in the future.

Harry

United Kingdom Mar 18.2026

Helpful (90)

I bought these 805050 3.7V 2500mAh lithium polymer batteries to replace the old cells in my Bluetooth speakers, and they work brilliantly. Fit is absolutely perfect, no trimming needed at all. The voltage and capacity are spot on, my speakers now hold charge for much longer than before. Power output is stable, sound quality isn’t affected one bit. They’re well-made and feel really durable. Delivery arrived quickly, items were well packed with no damage. Great value for money compared to local stores. I’ve been using them daily for weeks with zero issues. Would absolutely recommend these batteries to anyone needing replacements for wireless speakers. I’ll be coming back to buy more soon!

Tags:

Lithium Polymer Battery

Lithium Polymer Battery Pack

High Discharge Lipo Battery

Ultra Thin Lipo Battery

Round Lipo Battery

Curved Lipo Battery

Li Ion Battery Pack

LiFePO4 Battery Pack

High Temperature Lipo Battery

Custom Lipo Battery

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High Discharge Lipo Battery

Ultra Thin Lipo Battery

Round Lipo Battery

Curved Lipo Battery

Li Ion Battery Pack

LiFePO4 Battery Pack

High Temperature Lipo Battery

Custom Lipo Battery

products details

401225 90mAh 3.7V Li‑Polymer Battery For Bluetooth Wearable Smart Devices

90mAh Li-Polymer battery for Bluetooth

3.7V wearable device battery

smart device Li-Polymer battery

Overall Rating

Rating Snapshot

All Reviews

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