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Customer Case: LP505080 2000mAh 3.7V Slim Li-Po Battery for Portable Synthesizers & Music Controllers

Customer Case Study
Li-Po Pouch · Slim Design
Portable Synthesizer
Cell: LP505080 · 3.7V · 2000mAh

3.7V 2000mAh Slim Li-Po Battery for Portable Synthesizers & Music Controllers

A portable synthesizer brand needed a rechargeable battery that fits a slim enclosure, supports stable performance for digital audio electronics,
and provides a reliable runtime for mobile creative use. PKNERGY delivered a compact LP505080 3.7V 2000mAh Li-Po pouch solution with
consistent output, production-ready wiring, and a clear operating window.

Nominal Voltage
3.7V
Capacity
2000mAh
Max Continuous Discharge
2A
Internal Resistance
≤ 140mΩ
Project highlight: For portable music gear, the biggest risks are tight internal space and unstable voltage affecting electronics.
We focused on slim fit, stable output, and production consistency.

Application Photo
Battery Photo
At a glance
Slim pouch form
Stable output
Reliable charging
OEM-ready wiring

Customer Profile (Anonymous) & Project Context

The customer builds compact portable synthesizers / music controllers for creators who need reliable performance on the go.
Due to confidentiality, we do not disclose the brand name. Their device required a battery solution that fits a thin enclosure,
supports stable electronics operation, and remains safe during repeated charging cycles.

Application
Portable synthesizer / controller
Key Requirement
Slim fit + stable voltage
Priority
Safety & production consistency
Customer environment / device context (optional)

Challenges (What the customer needed to solve)

1) Thin enclosure & limited internal space
Portable music devices prioritize slim design. The battery had to fit precisely without increasing device thickness.
2) Stable voltage for sensitive electronics
Digital audio modules and control boards can be sensitive to voltage instability. The customer needed consistent output to avoid resets and noise issues.
3) Safe charging window for consumer usage
The device requires predictable charging behavior and safe cut-off thresholds, especially for repeated daily charging cycles.
Engineering note
For audio electronics, we care about stable voltage and clean power as much as capacity. We also ensure the pack fits
the enclosure safely with consistent assembly.

Solution (How PKNERGY engineered the pack)

PKNERGY delivered a slim Li-Po pouch solution designed to fit the synthesizer’s limited internal space while maintaining stable output
for sensitive electronics. We also prepared production-ready wiring and clear operating limits for safe usage.

Slim Fit, Precise Size Control
LP505080 format with controlled thickness supports compact device design and consistent assembly.
Stable Output for Electronics
Low internal resistance (≤ 140mΩ) and stable discharge help reduce resets and improve device reliability.
Safe Cut-off Window
Charging cut-off 4.2V and discharge cut-off 3.0V provide predictable behavior and better device protection.
OEM-ready Wiring & Connector
Custom harness length and connector options reduce assembly errors and improve serviceability.

Technical Specifications

Parameter Value
Model LP505080
Nominal Voltage 3.7V
Nominal Capacity 2000mAh
Size 5.2 × 50.5 × 82.5 mm
Internal Resistance ≤ 140mΩ
Charging Cut-off Voltage 4.2V
Discharge Cut-off Voltage 3.0V
Maximum Constant Charging Current 1000mA
Maximum Continuous Discharging Current 2000mA
Cycle Life ≥ 300 cycles (80% DOD)
Weight 36g
Temperature Guidance (Project Reference)
Charge: 0–10°C (0.2C) · 10–35°C (0.5C) · 35–45°C (0.2C)
Discharge: -20–0°C (0.2C) · 0–10°C (0.5C) · 10–35°C (1C) · 35–60°C (0.5C)

Results & Customer Feedback

  • Better portability: slim pouch profile kept the device thin and lightweight.
  • More stable electronics: consistent output improved reliability during performance and practice.
  • Reduced charging issues: clear voltage cut-offs improved safety and user experience.
  • Production readiness: reliable wiring and stable specs supported batch delivery.
“We needed a battery that fits a thin enclosure and keeps the electronics stable. PKNERGY helped us finalize the LP505080 solution quickly,
and the pack quality is consistent for production. Our users now get reliable runtime for mobile music creation.”
— Product Engineer, Portable Synthesizer Brand (Anonymous)

Photo Gallery (Optional)

Add more photos as needed (battery angles, wiring details, installation fit, testing shots, etc.). Duplicate or remove cards freely.

Caption: pouch cell overview.
Caption: connector & harness detail.
Caption: device usage scenario.

FAQ — Common Questions

Q1: Why choose a pouch cell for portable music devices?
Pouch cells help achieve a thinner device profile and better space utilization. They are ideal for compact enclosures where thickness matters.
Q2: What information do you need to customize a battery for my device?
Provide required voltage, average/peak current, size limits, connector type, charging method, and installation photos or drawings.
Usage time targets also help estimate capacity and real runtime.
Q3: Can you customize connectors and wiring harness?
Yes. We can customize harness length, connector model, polarity, and labeling to match your assembly process and reduce errors.
Q4: How do you ensure batch consistency?
We control key parameters such as IR window, voltage/capacity checks, and stable charge/discharge cut-offs to reduce variation across batches.

Need a custom battery for your portable electronics?
Share your voltage, size limits, peak current, connector preference, and device photos.
Our engineers will propose a production-ready battery solution.
Post time: Jan-05-2026

Customize samples immediately

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