3.7V 2000mAh 555165 lipo battery for bubble machines, dancing robots toy, karaoke microphones
| Model | VTC-LP555165 |
| Nominal Voltage | 3.7V |
| Capacity | 2000mAh |
| Max Size | 5.7X51.5X67mm |
| Operating Temperature | -20℃ to 60℃ |
| Standard Charge Rate | 0.5C |
| Standard Discharge Rate | 0.5C |
| Configuration | 1S1P |
| Weight | 42.5g |
3.7V 2000mAh 555165 lipo battery for bubble machines, dancing robots toy, karaoke microphones
The 3.7V 555165 2000mAh soft pack battery is a lithium polymer battery with a nominal voltage of 3.7V and a capacity of 2000mAh. This lithium polymer battery provides stable and durable power support for portable entertainment devices and consumer electronics through its 2000mah capacity and compact soft pack structure.
The features of this battery include: lightweight design, compact size, high energy density, low self-discharge rate and long cycle life. Using high-quality raw materials – lithium cobalt alloy or lithium ternary and soft aluminium foil – the lightweight battery and compact design is able to maintain stable electrical output performance over repeated charge/discharge cycles.
To ensure greater battery safety, an integrated protection circuit board (Battery PCB) protects the battery against overcharge, overdischarge, overcurrent, overheating, and short-circuit with a response time as low as 1-3 milliseconds. This protection system significantly improves the operational safety of consumer devices and other equipment.In terms of manufacturing process, the entire lipo battery production process is completed in a highly automated production line and a clean room with strict humidity control. The combination of a medical-grade workshop environment and MES system ensures high consistency, traceability and stable output quality for each battery.In terms of customisation, cable interfaces, discharge current and temperature requirements can all be fully customised to achieve seamless integration with various mechanical structures and electronic systems.In application scenarios, it can continuously and stably output about 3.6V-3.7V, providing reliable power for bubble machines that require continuous motor operation, dancing robotic toys with smooth movements, and karaoke microphones that require long playing time and stable audio performance.
Full Certification & Extended Warranty
VTCBATT LiPo batteries meet global certifications including CB, CE, UL, and UN38.3, and offer a 14-month warranty—two months longer than standard—to maximize customer confidence and profit.
CertificationVTCBATT lithium polymer batteries have passed numerous important international certifications, including UL1642, IEC62133, UN38.3, CE, ROHS, BIS and EU2024/1542, CE, ROHS, REACH, and KC certifications.
WarrantyVTCBATT LiPo batteries come with a 14-month warranty, 2 months longer than the standard 12-month warranty, providing extra coverage for shipping and customs clearance. This ensures customer confidence.
CustomizationDifferent sizes,capacities, connectors, discharge rates,and cases. Just inform us of your specific requirement, and our professional engineers can provide you with the customized lipo battery proposal.

Flexible order quantity to support prototype testing and mass production.

Our technical and sales teams reply to your inquiry within 6 hours.

Test our lithium battery quality and performance before placing bulk orders.
Batteries certified to UL, CE, UN38.3, MSDS, ROHS, IEC62133, and more global standards.
High energy density
Featuring high-energy density 200wh/kg-300wh/kg,the lipo battery can deliver more power than other battery chemistries and support high drain current to power the devices strongly.


PCB with NTC
VTCBATT lipo batteries are provided with NTC(Negative Temperature Coefficient), a kind of temperature sense to decrease the resistance as the temperature increases, allowing accurate temperature monitoring of the batteries. The NTC plays a critical role in improving the battery reliability and safety.
High Safety
In the safety lab,VTCBATT will stimulate all the test items of UL and IEC62133,including nail penetration test,free fall experiment,heavy object impact,extrusion experiments.

LiPo Battery Advantage

Based on 0.5C/1C cycling, the VTCBATT lipo battery can maintain over 80% capacity after 500 cycles and totally reach 1000 times cycle life.

VTCBATT Lipo battery can be discharged from -20℃ to 60℃.
This wide temperature range performance enables the battery to operate in many conditions.

VTCBATT lipo battery can be discharged in different rates of 0.2C,0.5C,1C,2C,3C to meet different power consumption.

After 30-day and 60-day storage, there is slight 1%-2% slight voltage decrease under 50% SOC at 25°C.
Why Choose VTCBATT?
VTCBATT not only focuses on customised design and excellent service to meet the diverse requirements of different customers, but also dedicates itself to precise and standardised manufacturing in every process to ensure the highest quality of batteries. Meanwhile, VTCBATT will provide comprehensive support from pre-sales to after-sales, focusing on customer feedback to establish long-term, win-win cooperation. VTCBATT’s professional sales teams and technical engineers will be your best customised battery experts to assist you with reliable and fast services at any time.
From mixing raw materials to testing cells, VTCBATT adopts a mechanised manufacturing process to maximise production efficiency and improve battery quality, safety and reliability. The entire manufacturing process is monitored and 100% tested before moving on to the next procedure to ensure there are no defects prior to delivery.
Over the past 20 years, VTCBATT has built strong partnerships with customers in more than 50 countries worldwide. With reliable quality, responsive service, and tailored battery solutions, we have earned the trust of our clients—many of whom have maintained long-term cooperation and lasting friendships with us for over a decade. Together, we continue to grow and move forward toward a brighter future.
Application for VTCBATT 3.7V 2000mAh 555165 polymer lithium battery
The VTCBATT 3.7V 2000mAh 555165 polymer lithium-ion battery is widely used in portable electronics and smart devices that require high energy density and stable power output. With a slim pouch design, it is ideal for bubble machines, dancing robots toy, karaoke microphones. This battery supports customized dimensions, voltage, and protection circuits to match specific application needs. Featuring low internal resistance, long cycle life, and reliable safety performance, the VTCBATT 2000mAh Li-polymer battery ensures efficient operation, extended runtime, and dependable performance for both consumer and industrial applications.

Stable 3.7V power keeps bubble machines spraying consistently through outdoor parties and extended play sessions.

Compact 555165 cell supports portable medical devices with dependable runtime, low weight, and safe integration.
High energy density powers IoT devices longer, reducing maintenance for sensors, trackers, and remote terminals.

Lightweight LiPo output drives dancing robot toys with responsive motors, lights, music, and rechargeable convenience.

Steady discharge helps karaoke microphones deliver clear amplification, colorful lighting, and longer singing between charges.

Robust current delivery enables tactical flashlights to sustain bright beams during patrols, camping, and emergencies.

Reliable capacity keeps walkie talkies transmitting clearly across outdoor work, security teams, and family trips.

Rechargeable 3.7V battery supports walking robot toys with stable movement, LEDs, sound, and extended playtime.










