| PRODUCT | |
|---|---|
| Capacity | 4V4.5AH/20HR |
| Model | KS4-4.5AH |
| Brand | KENSON |
| Type | Sealed Lead Acid (SMF) |
| Warranty | 3 Months |
The Advantages of VRLA AGM UPS Battery
❏ Long design life
❏ Maximum charge efficiency;
❏ High Oxygen recombination efficiency;
❏ Low self-discharge rate;
❏ Wide temperature range
❏ Easy handling and installation
The Features of VRLA AGM UPS Battery
❏ Positive plates: Flat pasted plate with lead-calcium-tin grid alloy;
❏ Negative plates: Flat pasted plate with lead-calcium grid alloy;
❏ Separators: Micro-porous AGM separator;
❏ Container: High-strength ABS
❏ Electrolyte: Absorbed sulfuric acid;
❏ Terminal posts: High-conductivity terminals
❏ Post sealing: Double sealing structure;
❏ Vents: High-efficiency low-pressure venting system.
The Application of VRLA AGM UPS battery
❏ UPS
❏ Emergency power
❏ Alarms, Fire & Security Systems
❏ Medical
❏ General Electronics & Control Equipment
❏ Communications Equipment
1. What is a 4V 4.5Ah rechargeable battery?
A 4V 4.5Ah rechargeable battery is a sealed battery designed to store and deliver 4 volts of power with a capacity of 4.5 ampere-hours. It’s commonly used in emergency lights, toys, medical devices, and backup power systems.
It can be used in emergency lamps, portable lights, weighing scales, toys, small UPS systems, medical equipment, and other low-voltage backup devices.
Most 4V 4.5Ah rechargeable batteries are sealed lead-acid (SLA/VRLA), but some models may be lithium-based. Always check the product specifications before buying.
The standard dimensions are usually around 70mm (L) × 47mm (W) × 101mm (H), but sizes may vary slightly by manufacturer.
It typically weighs between 0.6 – 0.8 kg, depending on the brand and type.
If stored properly, the shelf life is around 6–12 months without charging. However, periodic charging every 3–6 months is recommended to maintain health.
Yes, a 4V 4.5Ah battery can usually replace a 4V 4Ah battery, as long as the size fits your device. It will provide slightly longer backup.
The only difference is capacity. A 4.5Ah battery stores more energy and gives longer backup than a 4Ah battery.
Use a compatible charger that matches the voltage and current specifications. Connect the charger terminals correctly and charge until fully topped up.
Use a 4V lead-acid battery charger or a smart charger with automatic cut-off. Avoid using random chargers to prevent damage.
It generally takes 4–6 hours for a full charge, depending on the charger’s output.
Overcharging can reduce lifespan. It’s best to use a smart charger with auto cut-off to avoid overcharging.
The backup time depends on the device’s power consumption. For example, in an emergency light, it may last 4–8 hours.
Yes, in most cases, but ensure the device supports charging while operating to prevent overheating.
For SLA types, the recommended charging voltage is around 4.8V–5.0V, with a current of 0.45A (10% of capacity).
Yes, sealed rechargeable batteries are safe for indoor use as they are maintenance-free and leak-proof.
Some models include built-in protection, but many require an external smart charger for safety.
Sealed lead-acid batteries are spill-proof and leak-proof, making them safe for everyday applications.
When used correctly, the battery is safe and explosion-proof. Avoid overcharging, short circuits, or exposure to fire.
It works best between -20°C to 50°C. Extreme heat or freezing conditions may reduce performance and lifespan.
Yes, many ride-on cars and toys use this battery type. Always install it securely and supervise children during use.
Stop using it immediately and replace it. Do not puncture, burn, or throw it in the trash.
Typically, a 4V 4.5Ah SLA battery supports 300–500 charge cycles, depending on usage and care.
On average, it lasts 2–4 years with proper care.
Avoid deep discharges
Use the correct charger
Keep it in a cool, dry place
Charge regularly if not in use
No. Unlike older batteries, sealed lead-acid batteries last longer if you recharge before they are fully drained.
It can be stored, but you should recharge it every 3–6 months to prevent self-discharge damage.
Store it in a cool, dry place at room temperature. Avoid direct sunlight and extreme heat.
Most brands provide a 6–12 month warranty, depending on the manufacturer and seller.
Do not throw it in household waste. Take it to a battery recycling center or return it to the seller for proper disposal.
