Rechargeable Li-Ion Battery AVACOM for Sony Ericsson S510i K770 3.6V 930mAh (replacement BST-38)

AVACOM rechargeable Li-Ion battery designed as a direct replacement for Sony Ericsson BST-38. With a nominal voltage of 3.6 V and a capacity of 930 mAh, this battery restores power to compatible mobile phones and supports standard charging. It is intended as a functional replacement cell to extend device runtime for calls, messaging and mobile apps.

Advantages

This AVACOM battery matches the voltage and capacity specifications of the original BST-38 and is built for compatibility with the listed Sony Ericsson models. Its Li-Ion chemistry provides stable voltage output and low self-discharge for reliable everyday use. The battery is a direct replacement cell intended to fit the original battery compartment and accept standard chargers.

Suitable for

• Restoring power in older Sony Ericsson phones that use BST-38 style batteries
• Replacing a worn or degraded battery in daily-use mobile phones
• Maintaining mobility for calls, SMS and light app use on compatible models

When it may not be suitable

This battery is designed specifically as a replacement for BST-38 and is not suitable for phones that require a different battery form factor, voltage or connector. It may not support heavy power-demand applications or modern smartphones that require higher capacities or different battery technology.

Key specifications

• Chemistry: Lithium-ion (Li-Ion)
• Nominal voltage: 3.6 V
• Capacity: 930 mAh
• Compatibility: Replacement for BST-38 style batteries for compatible Sony Ericsson models
• Intended use: Rechargeable mobile phone battery

How to use

Turn off the phone before replacing the battery. Remove the back cover and original battery according to the phone manufacturer’s instructions, then insert the AVACOM battery in the correct orientation. Replace the back cover and charge the phone with a compatible charger until fully charged. Follow normal charging and device safety practices during use.

What to consider before purchase

• Confirm your phone model is listed among the compatible Sony Ericsson models that use BST-38 style batteries
• Ensure the device’s battery compartment and connector match the replacement cell form factor
• Be aware that capacity and runtime depend on device condition and usage patterns

Usage recommendations

For best results, use a manufacturer-recommended or properly rated charger, avoid exposing the battery to high temperatures, and replace the battery when runtime becomes noticeably shorter than expected.