503035 3.7V 500mAh Lithium Polymer Battery Rechargeable Li-Po Cell Custom Connector

Our 503035 lithium polymer battery delivers stable 3.7V 500mAh power for small portable gadgets like toothbrush sterilizers. This reliable lithium polymer battery supports custom sizing, connectors and capacity to match your compact electronic devices, with long cycle life and consistent discharge performance for daily portable electronics use.

This 503035 li-po cell runs on a nominal 3.7V with a safe 4.2V full charge cutoff voltage. It supports 0.2C-0.5C standard discharge and max 1C discharge current, avoiding unstable power surges that damage sensitive small equipment during daily operation.

Standard dimension sits at 5±0.2 * 30±0.5 * 35±2.5mm, perfect for narrow internal spaces of mini devices. We offer fully customizable thickness, width, length, voltage and capacity if your project requires non-standard lithium polymer battery sizes.

Pre-installed JST or Molex connectors are selectable per your device circuit design. No extra wiring modification is needed, which cuts your assembly labor time and reduces wiring failure risks for mass production.

The cell sustains over 500 complete charge-discharge cycles without obvious capacity decay. It holds steady power output after long-term repeated use, lowering your device battery replacement frequency and user long-term costs.

We provide both in-stock units shipped within 3-7 days and custom bulk orders finished in 2-3 weeks. Sample testing is fully supported so you can verify this lithium polymer battery's performance before bulk purchase.

The core designed scenario: electric toothbrush sterilizers. Its slim form factor fits compact sterilizer housings, offering lasting portable power for countertop oral care sanitizing devices without bulky extra space.

All compact consumer digital products including mini Bluetooth devices, portable GPS trackers and lightweight beauty equipment. The steady low-current discharge fits small handheld beauty tools for facial care and skin devices.

Small wearable and handheld medical gear relies on this safe lithium polymer battery for continuous low-power operation, suitable for portable home medical monitoring equipment with strict power stability requirements.

Compact lightweight toys and slim mini power banks benefit from its thin li-po design. It balances capacity and size to keep small portable chargers and kids' electric toys lightweight and long-lasting.

Hard 4.2V maximum charging cutoff prevents overcharging, the top risk of li-po cell swelling, leakage or overheating. Users can safely charge with standard 3.7V lithium chargers without extra voltage monitoring hardware.

Capped 1C maximum discharge avoids over-drawing power that damages internal cell layers. For low-power daily electronics, the 0.2C-0.5C standard discharge maintains gentle, safe power draw for extended cell lifespan.

All units use industrial carton packaging that meets international air freight and sea transport safety standards. Every package follows lithium battery shipping regulations to eliminate transit safety hazards for global delivery.

As a professional lithium polymer battery manufacturer, every HZ503035 cell undergoes capacity and discharge testing before shipment. Consistent factory quality control reduces defective rate and safety failures for end-user devices.

All HZ503035 lithium polymer batteries come with manufacturer direct quality assurance. Defective cells from factory production can be replaced within our warranty window. Our professional technical support team offers fast email and message assistance for compatibility, custom sizing and connector matching questions. All batteries follow international lithium cell safety standards for consumer and commercial electronic use, so you can integrate this li-po cell into your portable devices with full confidence.