Bluetooth headsets have become essential wearable audio devices for communication, entertainment, sports, gaming, and work. From compact TWS earbuds to ANC headphones and open-ear audio products, battery performance directly affects playback time, wearing comfort, charging speed, and overall product reliability.
LithoTop specializes in rechargeable lithium polymer batteries for Bluetooth headset applications, providing ultra-small, curved, ultra-narrow, and custom-shaped battery solutions to fit different acoustic structures and product designs.
Bluetooth Headset Battery Features
- Compact and lightweight design for TWS earbuds and wearable audio devices
- High energy density for longer music playback and standby time
- Ultra-small LiPo battery options from 30mAh to 150mAh
- Ultra-narrow battery designs for slim Bluetooth headsets and neckband earphones
- Curved battery solutions for open-ear and ergonomic headset structures
- Support fast charging and stable discharge performance
- Optional PCM protection, wires, tabs and connector customization
- Sample development support within 7–15 days depending on project requirements
Product Series for Bluetooth Headset Batteries
Ultra-Small Earbud Batteries
For compact TWS earbuds and mini Bluetooth earphones.
Curved Headset Batteries
For ergonomic, open-ear and bone conduction headset structures.
Ultra-Narrow Audio Batteries
For neckband earphones, slim Bluetooth headsets and smart audio modules.
Why Choose LithoTop
- Grade-A lithium polymer cells
- Custom ultra-small battery development
- Curved and special-shaped battery manufacturing capability
- In-house PCM protection design
- OEM/ODM support for audio device manufacturers
- Fast sample development
- UN38.3, IEC62133, CE, RoHS and MSDS support
- 100% inspection before shipment
Typical Battery Specifications
| Parameter | Typical Range |
|---|---|
| Voltage | 3.7V – 3.85V |
| Capacity | 30mAh – 2000mAh |
| Battery Type | LiPo |
| Shape | Standard / Curved / Ultra-Narrow |
| Thickness | 1.0mm – 8.0mm |
| Cycle Life | 300–500 Cycles |
| PCM | Optional |
| Wires&Connector | Optional |
Please feel free to contact us for more information and customized battery solutions for your project.
The majority of Bluetooth earbuds and TWS earphones use ultra-small lithium polymer batteries because they provide reliable power in a compact and lightweight form.
Typical Capacities
- 30mAh
- 40mAh
- 50mAh
- 60mAh
- 80mAh
- 100mAh
Typical Applications
- TWS Earbuds
- Bluetooth Earphones
- Sports Earbuds
- Hearing Devices
Small Lipo Batteries List
| Model | Voltage(V) | Capacity(mAh) | Cell Size(T*W*L)mm | Shape |
|---|---|---|---|---|
| 500830 | 3.7 | 110 | 5*8*30 | Pouch |
| 500922 | 3.7 | 65 | 5*9*22 | Pouch |
| 500935 | 3.7 | 130 | 5*9*35 | Pouch |
| 501010 | 3.7 | 35 | 5*10*10 | Pouch |
| 501012 | 3.7 | 40 | 5*10*12 | Pouch |
| 501015 | 3.7 | 50 | 5*10*15 | Pouch |
| 501030 | 3.7 | 120 | 5*10*30 | Pouch |
| 501035 | 3.7 | 130 | 5*10*35 | Pouch |
| 501038 | 3.7 | 160 | 5*10*38 | Pouch |
| 501040 | 3.7 | 180 | 5*10*40 | Pouch |
| 501114 | 3.7 | 50 | 5*11*14 | Pouch |
| 501120 | 3.7 | 100 | 5*11*20 | Pouch |
| 501130 | 3.7 | 150 | 5*11*30 | Pouch |
| 501145 | 3.7 | 250 | 5*11*45 | Pouch |
| 501215 | 3.7 | 60 | 5*12*15 | Pouch |
| 501220 | 3.7 | 100 | 5*12*20 | Pouch |
| 501225 | 3.7 | 120 | 5*12*25 | Pouch |
| 501228 | 3.7 | 150 | 5*12*28 | Pouch |
| 501230 | 3.7 | 130 | 5*12*30 | Pouch |
| 501235 | 3.7 | 150 | 5*12*35 | Pouch |
| 501240 | 3.7 | 200 | 5*12*40 | Pouch |
| 501245 | 3.7 | 260 | 5*12*45 | Pouch |
| 501314 | 3.7 | 65 | 5*13*14 | Pouch |
| 501321 | 3.7 | 105 | 5*13*21 | Pouch |
| 501323 | 3.7 | 120 | 5*13*23 | Pouch |
| 501332 | 3.7 | 170 | 5*13*32 | Pouch |
| 501420 | 3.7 | 95 | 5*14*20 | Pouch |
| 501447 | 3.7 | 280 | 5*14*47 | Pouch |
| 501515 | 3.7 | 80 | 5*15*15 | Pouch |
| 501520 | 3.7 | 125 | 5*15*20 | Pouch |
| 501522 | 3.7 | 130 | 5*15*22 | Pouch |
| 501524 | 3.7 | 170 | 5*15*24 | Pouch |
| 501530 | 3.7 | 200 | 5*15*30 | Pouch |
| 501535 | 3.7 | 240 | 5*15*35 | Pouch |
| 501622 | 3.7 | 140 | 5*16*22 | Pouch |
| 501645 | 3.7 | 340 | 5*16*45 | Pouch |
| 501723 | 3.7 | 160 | 5*17*23 | Pouch |
| 501725 | 3.8 | 230 | 5*17*25 | Pouch |
| 501730 | 3.7 | 200 | 5*17*30 | Pouch |
| 501735 | 3.7 | 300 | 5*17*35 | Pouch |
| 501818 | 3.7 | 150 | 5*18*18 | Pouch |
| 501825 | 3.7 | 180 | 5*18*25 | Pouch |
| 501880 | 3.7 | 300 | 5*18*80 | Pouch |
| 502020 | 3.7 | 150 | 5*20*20 | Pouch |
| 502025 | 3.7 | 200 | 5*20*25 | Pouch |
| 502028 | 3.7 | 250 | 5*20*28 | Pouch |
| 502030 | 3.7 | 320 | 5*20*30 | Pouch |
| 502035 | 3.7 | 350 | 5*20*35 | Pouch |
| 502035 | 3.8 | 400 | 5*20*35 | Pouch |
| 502040 | 3.7 | 400 | 5*20*40 | Pouch |
| 502045 | 3.7 | 450 | 5*20*45 | Pouch |
| 502050 | 3.7 | 500 | 5*20*50 | Pouch |
| 502060 | 3.7 | 600 | 5*20*60 | Pouch |
| 502065 | 3.7 | 700 | 5*20*65 | Pouch |
| 502080 | 3.7 | 900 | 5*20*80 | Pouch |
| 502235 | 3.7 | 365 | 5*22*35 | Pouch |
| 502243 | 3.7 | 460 | 5*22*43 | Pouch |
| 502248 | 3.7 | 520 | 5*22*48 | Pouch |
| 502260 | 3.7 | 600 | 5*22*60 | Pouch |
| 502270 | 3.7 | 900 | 5*22*70 | Pouch |
| 502325 | 3.7 | 260 | 5*23*25 | Pouch |
| 502525 | 3.7 | 300 | 5*25*25 | Pouch |
| 502530 | 3.7 | 350 | 5*25*30 | Pouch |
| 502535 | 3.7 | 450 | 5*25*35 | Pouch |
| 502540 | 3.7 | 500 | 5*25*40 | Pouch |
| 502560 | 3.7 | 900 | 5*25*60 | Pouch |
| 502728 | 3.7 | 400 | 5*27*28 | Pouch |
| 502828 | 3.8 | 500 | 5*28*28 | Pouch |
| 503030 | 3.7 | 400 | 5*30*30 | Pouch |
| 503035 | 3.7 | 520 | 5*30*35 | Pouch |
| 503040 | 3.7 | 600 | 5*30*40 | Pouch |
| 503048 | 3.7 | 750 | 5*30*48 | Pouch |
| 503065 | 3.7 | 1200 | 5*30*65 | Pouch |
| 503450 | 3.7 | 1000 | 5*34*50 | Pouch |
| 503560 | 3.7 | 1200 | 5*35*60 | Pouch |
| 503759 | 3.7 | 1200 | 5*37*59 | Pouch |
| 504045 | 3.7 | 900 | 5*40*45 | Pouch |
| 504065 | 3.7 | 1500 | 5*40*65 | Pouch |
| 504070 | 3.7 | 1200 | 5*40*70 | Pouch |
| 505050 | 3.7 | 1500 | 5*50*50 | Pouch |
| 505060 | 3.7 | 2000 | 5*50*60 | Pouch |
| 505080 | 3.7 | 2200 | 5*50*80 | Pouch |
| 5050100 | 3.7 | 4000 | 5*50*100 | Pouch |
| 505573 | 3.7 | 2500 | 5*55*73 | Pouch |
| 506090 | 3.7 | 3000 | 5*60*90 | Pouch |
| 521012 | 3.7 | 45 | 5.2*10*12 | Pouch |
| 521220 | 3.7 | 90 | 5.2*12*20 | Pouch |
| 521417 | 3.7 | 100 | 5.2*14*17 | Pouch |
| 521525 | 3.7 | 170 | 5.2*15*25 | Pouch |
| 522030 | 3.7 | 280 | 5.2*20*30 | Pouch |
| 522035 | 3.8 | 400 | 5.2*20*35 | Pouch |
| 522540 | 3.8 | 680 | 5.2*25*40 | Pouch |
| 522830 | 3.8 | 560 | 5.2*28*30 | Pouch |
| 523450 | 3.8 | 1250 | 5.2*34*50 | Pouch |
| 531525 | 3.7 | 180 | 5.3*15*25 | Pouch |
| 551015 | 3.7 | 55 | 5.5*10*15 | Pouch |
| 551045 | 3.7 | 250 | 5.5*10*45 | Pouch |
| 551220 | 3.7 | 110 | 5.5*12*20 | Pouch |
| 551225 | 3.7 | 160 | 5.5*12*25 | Pouch |
| 551235 | 3.7 | 180 | 5.5*12*35 | Pouch |
| 551240 | 3.7 | 230 | 5.5*12*40 | Pouch |
| 551245 | 3.7 | 250 | 5.5*12*45 | Pouch |
| 551520 | 3.7 | 150 | 5.5*15*20 | Pouch |
| 551525 | 3.7 | 180 | 5.5*15*25 | Pouch |
| 551535 | 3.7 | 240 | 5.5*15*35 | Pouch |
| 551730 | 3.7 | 220 | 5.5*17*30 | Pouch |
| 551735 | 3.7 | 320 | 5.5*17*35 | Pouch |
| 552035 | 3.7 | 350 | 5.5*20*35 | Pouch |
| 552040 | 3.7 | 400 | 5.5*20*40 | Pouch |
| 552065 | 3.7 | 800 | 5.5*20*65 | Pouch |
| 552225 | 3.7 | 250 | 5.5*22*25 | Pouch |
| 552230 | 3.7 | 320 | 5.5*22*30 | Pouch |
| 552240 | 3.7 | 400 | 5.5*22*40 | Pouch |
| 552248 | 3.7 | 600 | 5.5*22*48 | Pouch |
| 552530 | 3.7 | 350 | 5.5*25*30 | Pouch |
| 552535 | 3.7 | 450 | 5.5*25*35 | Pouch |
| 552548 | 3.7 | 600 | 5.5*25*48 | Pouch |
| 552728 | 3.7 | 400 | 5.5*27*28 | Pouch |
| 553035 | 3.7 | 600 | 5.5*30*35 | Pouch |
| 552530 | 3.7 | 350 | 5.5*25*30 | Pouch |
| 552548 | 3.7 | 700 | 5.5*25*48 | Pouch |
| 552728 | 3.7 | 400 | 5.5*27*28 | Pouch |
| 553035 | 3.7 | 600 | 5.5*30*35 | Pouch |
| 555056 | 3.7 | 2100 | 5.5*50*56 | Pouch |
| 555075 | 3.7 | 2500 | 5.5*55*75 | Pouch |
| 5565113 | 3.7 | 5000 | 5.5*65*113 | Pouch |
| 581015 | 3.7 | 60 | 5.8*10*15 | Pouch |
| 581525 | 3.7 | 180 | 5.8*15*25 | Pouch |
| 582525 | 3.7 | 350 | 5.8*25*25 | Pouch |
Ideal for open-ear earphones, bone conduction headsets, premium TWS earbuds and ergonomic audio devices.
- Curved design for irregular internal space
- Better space utilization
- Improved wearing comfort
- Higher usable capacity
- Custom radius and dimensions available
Curve Lipo Batteries List
| Model | Voltage(V) | Capacity(mAh) | Cell Size(T*W*L)mm | Shape | Polairty&Direction |
|---|---|---|---|---|---|
| 125034 | 3.7 | 14 | 1.25*5.1*34 | Curve | CD |
| 3.8 | 16 | Curve | |||
| 125625 | 3.7 | 10 | 1.25*5.6*25 | Curve | CD |
| 3.8 | 12 | Curve | |||
| 125628 | 3.7 | 12 | 1.25*5.6*28 | Curve | CD |
| 3.8 | 14 | Curve | |||
| 125634 | 3.7 | 15 | 1.25*5.6*34 | Curve | CD |
| 3.8 | 17 | Curve | |||
| 126825 | 3.7 | 13 | 1.25*6.9*25 | Curve | ABCD |
| 3.8 | 15 | Curve | |||
| 120732 | 3.7 | 17 | 1.25*7.1*31 | Curve | ABCD |
| 3.8 | 19 | Curve | |||
| 155034 | 3.7 | 16 | 1.52*5.1*34 | Curve | CD |
| 3.8 | 18 | Curve | |||
| 155625 | 3.7 | 12 | 1.52*5.6*25 | Curve | CD |
| 3.8 | 14 | Curve | |||
| 155628 | 3.7 | 14 | 1.52*5.6*28 | Curve | CD |
| 3.8 | 16 | Curve | |||
| 155634 | 3.7 | 18 | 1.52*5.6*34 | Curve | CD |
| 3.8 | 20 | Curve | |||
| 156825 | 3.7 | 16 | 1.52*6.9*25 | Curve | ABCD |
| 3.8 | 18 | Curve | |||
| 150720 | 3.7 | 12 | 1.52*6.8*20.5 | Curve | ABCD |
| 3.8 | 13 | Curve | |||
| 150732 | 3.7 | 20 | 1.52*7.1*31 | Curve | ABCD |
| 3.8 | 22 | Curve | |||
| 160620 | 3.7 | 11 | 1.6*6*20 | Curve | ABCD |
| 3.8 | 13 | Curve | |||
| 160630 | 3.7 | 18 | 1.6*6*30 | Curve | ABCD |
| 3.8 | 21 | Curve | |||
| 160635 | 3.7 | 25 | 1.6*6*35 | Curve | D |
| 3.8 | 28 | Curve | |||
| 185625 | 3.7 | 17 | 1.8*5.6*25 | Curve | CD |
| 3.8 | 20 | Curve | |||
| 185628 | 3.7 | 19 | 1.8*5.6*28 | Curve | CD |
| 3.8 | 22 | Curve | |||
| 185634 | 3.7 | 23 | 1.8*5.6*34 | Curve | CD |
| 3.8 | 26 | Curve | |||
| 186825 | 3.7 | 22 | 1.8*7*25 | Curve | CD |
| 3.8 | 24 | Curve | |||
| 180732 | 3.7 | 30 | 1.8*7*31 | Curve | CD |
| 3.8 | 34 | Curve | |||
| 210630 | 3.7 | 30 | 2.1*6*30 | Curve | D |
| 3.8 | 33 | Curve | |||
| 210635 | 3.7 | 35 | 2.1*6*35 | Curve | C |
| 3.8 | 38 | Curve |
Suitable for neckband earphones, Bluetooth headsets, smart audio devices and slim wearable electronics.
- Narrow profile for slim structures
- Lightweight and compact
- Flexible installation
- Custom width, length and thickness
- High energy density
Ultra Narrow Lipo Batteries List
| Model | Voltage(V) | Capacity(mAh) | Cell size(T*W*L)mm |
|---|---|---|---|
| 200815 | 3.7 | 9 | 2*8*15 |
| 201030 | 3.7 | 50 | 2*10*30 |
| 281024 | 3.7 | 40 | 2.8*10*24 |
| 300810 | 3.7 | 8 | 3*8*10 |
| 300812 | 3.7 | 15 | 3*8*12 |
| 300816 | 3.7 | 20 | 3*8*16 |
| 300822 | 3.7 | 32 | 3*8*22 |
| 300830 | 3.7 | 55 | 3*8*30 |
| 300927 | 3.7 | 55 | 3*9*27 |
| 301010 | 3.7 | 20 | 3*10*10 |
| 301012 | 3.7 | 25 | 3*10*12 |
| 301020 | 3.7 | 40 | 3*10*20 |
| 301030 | 3.7 | 70 | 3*10*30 |
| 350725 | 3.7 | 40 | 3.5*7*25 |
| 350830 | 3.7 | 60 | 3.5*8*30 |
| 350835 | 3.7 | 80 | 3.5*8*35 |
| 351015 | 3.7 | 30 | 3.5*10*15 |
| 351020 | 3.7 | 55 | 3.5*10*20 |
| 400810 | 3.7 | 15 | 4*8*10 |
| 400830 | 3.7 | 80 | 4*8*30 |
| 400835 | 3.7 | 100 | 4*8*35 |
| 400920 | 3.7 | 60 | 4*9*20 |
| 400930 | 3.7 | 90 | 4*9*30 |
| 400940 | 3.7 | 120 | 4*9*40 |
| 401010 | 3.7 | 25 | 4*10*10 |
| 401012 | 3.7 | 30 | 4*10*12 |
| 401015 | 3.7 | 40 | 4*10*15 |
| 401020 | 3.7 | 55 | 4*10*20 |
| 401025 | 3.7 | 75 | 4*10*25 |
| 401030 | 3.7 | 90 | 4*10*30 |
| 401035 | 3.7 | 110 | 4*10*35 |
| 401050 | 3.7 | 160 | 4*10*50 |
| 401130 | 3.7 | 110 | 4*11*30 |
| 500830 | 3.7 | 110 | 5*8*30 |
| 501010 | 3.7 | 35 | 5*10*10 |
| 501015 | 3.7 | 50 | 5*10*15 |
| 501030 | 3.7 | 120 | 5*10*30 |
| 501035 | 3.7 | 130 | 5*10*35 |
| 501040 | 3.7 | 180 | 5*10*40 |
| 501130 | 3.7 | 150 | 5*11*30 |
| 501145 | 3.7 | 250 | 5*11*45 |
| 601015 | 3.7 | 60 | 6*10*15 |
| 601030 | 3.7 | 150 | 6*10*30 |
| 601040 | 3.7 | 200 | 6*10*40 |
| 601045 | 3.7 | 260 | 6*10*45 |
Frequently Asked Questions
What battery is used in Bluetooth headsets?
Most Bluetooth headsets and TWS earbuds use rechargeable lithium polymer batteries because they are compact, lightweight, and offer high energy density.
What capacity is common for TWS earbud batteries?
Typical TWS earbud batteries range from 30mAh to 100mAh, while larger Bluetooth headphones may use 300mAh to 2000mAh batteries.
Can LithoTop customize Bluetooth headset batteries?
Yes. LithoTop supports custom size, capacity, voltage, tabs, wires, connectors, PCM protection, and special battery shapes.
Can you make curved batteries for earbuds?
Yes. LithoTop provides curved and custom-shaped LiPo batteries for ergonomic Bluetooth headsets, open-ear earphones, and bone conduction audio devices.
Want a different Wearable batteries? Contact us now for your special needs.
