6.04 €
In Stock
Rechargeable 4V 4Ah Lead Acid Battery SY4-4 for alarms, scales and toys
Brand: Songyuan
6.04€
VAT included (Ex VAT: 4.91 €)
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Rechargeable SY4-4 Lead Acid Battery 4V4Ah for Alarms, Scales and Toys
This rechargeable lead acid battery SY4-4 is a reliable and long-lasting solution for a range of electronic applications and devices that require a stable and efficient power source.
Product description
Made from high-quality materials, this battery offers superior performance and a long service life. It is a maintenance-free model that uses AGM (Absorbent Glass Mat) technology, ensuring safety and efficiency in use.
Main features
- Type: rechargeable lead-acid storage battery
- Nominal voltage: 4V
- Capacity: 4Ah
- Technology: SLA with electrolyte gel
- Cyclic use: 4.8-5.0V
- Standby use: 4.4-4.6V
- Initial current: less than 1.2A
- Polarity: positive on the right (red positive, black negative)
- Dimensions: 100mm x 47mm x 47mm
- Weight: 0,4 kg
- Maintenance-free
- Factory pre-charged, ready to use
Typical applications
This battery is ideal for:
- Alarms and security systems
- Electronic scales
- Electric toys, such as children's cars
- Uninterruptible power supplies (UPS)
- LED lamps, desk lights and emergency lights
- Portable electronic devices and charging fans
- Photography equipment and communication systems
- Access control systems and automatic doors
- Intercom systems and solar power
Instructions for use
The battery comes factory charged and can be used straight away. The red terminal corresponds to the positive pole and the black to the negative, both located at the top.
Compatibility
Compatible with a wide range of devices that require a 4V and 4Ah battery, especially for backup applications and continuous standby use.
This SY4-4 battery from Songyuan is an excellent choice for those looking for a reliable, efficient and easy-to-maintain power source for their electronic devices.
- Rechargeable lead-acid battery with AGM technology
- Nominal voltage of 4V and capacity of 4Ah
- Maintenance-free and factory pre-charged
- Positive on the right polarity (red positive, black negative)
- Compact dimensions of 100mm x 47mm x 47mm
- Lightweight at 0,4 kg
- Ideal for alarms, scales, toys and standby power systems
Customer Questions & Answers
What are the approximate dimensions and weight of the SY4-4 battery?
The SY4-4 battery has typical approximate dimensions of 48 mm x 47.5 mm x 100 mm (width x depth x height) and a usual weight of between 0.55 kg and 0.65 kg. Small variations may exist depending on the manufacturer and batch.
Is there any risk of leaks or does this AGM lead battery require special maintenance?
No, the SY4-4 battery uses AGM technology, so it is sealed and maintenance-free. It does not present a risk of leaks under normal use, unlike traditional lead-acid batteries with liquid electrolyte.
What is the cycle life and operating limit for charging and discharging this battery?
With a standard 50% depth of discharge and properly regulated charging, the SY4-4 can provide between 200 and 300 full cycles. Frequent deep discharges or exposure to temperatures above 40 °C will significantly reduce its service life.
What happens if I connect the battery with reverse polarity? Does it include internal protection against installation errors?
The battery does not include internal reverse-polarity protection. Connecting the red (positive) and black (negative) terminals the wrong way round can damage the battery and the equipment. Always check the orientation before installation.
Does this battery require maintenance?
No, the SY4-4 lead acid battery is maintenance-free thanks to its AGM technology.
Can I use this battery straight away when I receive it?
Yes, the battery comes factory charged and is ready for immediate use.
What are the battery dimensions?
The dimensions are 100mm long, 47mm wide and 47mm high.
Which devices is this battery suitable for?
It is suitable for alarms, electronic scales, electric toys, uninterruptible power supplies and other devices requiring 4V and 4Ah.
What is the battery polarity?
The polarity is positive on the right; the red terminal is positive and the black terminal is negative.
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Rechargeable 4V 4Ah Lead Acid Battery SY4-4 for alarms, scales and toys
6.04 €