Powersonic PS1221S, 12V 2.0AH Battery with side contacts
Unleash the Power and Reliability of the PowerSonic PS1221S SLA Battery
The PowerSonic PS1221S sealed lead acid (SLA) battery is a trusted powerhouse for general-purpose, emergency, and backup power applications. Compact and lightweight, this 12V battery delivers high performance, long life, and dependable power—ideal for security systems, medical devices, fire alarms, and more.
🔋 Versatile and Robust Performance
Whether you're powering emergency lighting, telecom equipment, medical devices, or alarm panels, the PS1221S provides stable output and efficient energy delivery. Its maintenance-free, spill-proof design ensures safety and reliability in both commercial and industrial applications.
🛡️ Durable Construction
Built with a rugged ABS plastic case, the PS1221S is resistant to vibration and impact. Its valve-regulated, non-spillable design offers safe handling and versatile mounting options. Note: Battery is shipped without cables or adapters. Always verify terminal compatibility before purchase.
⚙️ Advanced AGM Technology
Powered by Absorbent Glass Mat (AGM) technology, the PS1221S ensures efficient charge/discharge cycles and extended battery life. With a 5-year design life and gas recombination technology, it’s engineered for reliability under pressure.
📦 Specifications
- Chemistry: AGM (Absorbent Glass Mat)
- Nominal Voltage: 12V (6 cells)
-
Capacity:
- 2.00Ah @ 20-hr (100mA to 10.5V)
- 1.90Ah @ 10-hr (190mA to 10.5V)
- 1.70Ah @ 5-hr (340mA to 10.2V)
- 1.24Ah @ 1-hr (1.24A to 9.0V)
- Max Discharge Current (10 sec): 20.0A
- Internal Resistance: Approx. 80 milliohms
-
Operating Temperature Range:
- Charge: 5°F (-15°C) to 122°F (50°C)
- Discharge: -4°F (-20°C) to 140°F (60°C)
- Case: Durable ABS plastic
- Weight: 1.5 lbs (0.68 kg)
- Model: PowerSonic PS1221S
- SKU: PS1221S
- Warranty: 1 Year Replacement
📏 Dimensions
- Length: 5.91 in (150 mm)
- Width: 0.80 in (20 mm)
- Height: 3.52 in (89 mm)
- Height to Top of Terminal: 3.52 in (89 mm)
🧊 Shelf Life & Storage
- 1 Month: 97% Capacity Retention
- 3 Months: 91%
- 6 Months: 83%
🔌 Charging Guidelines
- Cycle Use: 14.1–14.7V (2.35–2.45V/cell), initial current < 0.25C Amps
- Float Use: 13.5–13.8V (2.25–2.30V/cell)
- Temperature Compensation: Adjust voltage based on ambient temperature
🌐 Compatible Power Sonic Chargers
- PSC-12300A-C
- PSC-12300-PC
- PSC-12500A-C
- PSC-12500-PC
📄 Certifications & Approvals
- U.L. Recognized
- ISO9001:2015 Certified
- Approved for air transport: D.O.T., I.A.T.A., F.A.A., C.A.B.
✅ Applications
- General Purpose Backup
- Emergency Lighting
- Medical Equipment
- Fire and Security Systems
🛒 Check Before Ordering
Please verify terminal type, dimensions, and system compatibility before placing your order. Shipping costs are non-refundable for incorrect orders.
🔁 30-Day Return Policy & 1-Year Warranty
Buy with confidence—this battery is backed by our 30-day return policy and a full 1-year replacement warranty.
Want Instant Shipping Costs?
Want Instant Shipping Costs?
🚚 Instant Shipping Costs?
It’s super simple! Just add the product you want to your cart, enter the quantity and your postal code, and you'll instantly see real-time shipping rates for all in-stock items. Fast, easy, and totally hassle-free!
💡 Shipping heavy or bulk items?
If your order includes multiple heavy products, we recommend requesting a custom quote — we may be able to arrange a better rate with a transport truck!
Please note: We reserve the right to send heavier items by transport truck if the carrier's maximum weight per package is exceeded or if we consider it too risky to place with a courier due to the possibility of damage occurring.
🔋 What’s mAh All About?
🔋 What’s mAh All About?
mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨
Before ordering please read
Before ordering please read
Ensure the original battery model number is mentioned in our product description and verify that your device model number is also listed in the description.
How to Look after your new lithium battery!!
How to Look after your new lithium battery!!
See how to look after your battery if its lithium Lithium Care
Delivery and Shipping
Delivery and Shipping
See our shipping policy and details at this link Shipping Details
ADVISORY:- ABOUT OUR IMAGES
📸 Send Us Your Battery Image
Not sure which replacement battery you need? Just snap a Photo / Video of your current battery and send it our way! Our team will quickly identify the exact match and recommend the perfect replacement model — no guesswork, no hassle.
🔍 Fast, Expert Assistance
We’ve helped thousands of customers find the right battery — let us do the same for you. Whether it’s for an alarm system, emergency light, or industrial equipment, we’ve got you covered.
📤 Click below to post your image and get started:
POST YOUR IMAGEImages from our customers
Specifications
| Product Information | |
|---|---|
| Category | Sealed Lead Acid (SLA) |
| Battery Type | AGM (Absorbent Glass Mat) |
| Nominal Voltage | 12V (6 cells) |
| Capacity | 2.00Ah @ 20hr, 1.90Ah @ 10hr, 1.70Ah @ 5hr, 1.24Ah @ 1hr |
| Max Discharge Current (10 sec) | 20.0 Amperes |
| Internal Resistance | Approx. 80 milliohms |
| Operating Temperature | Charge: 5°F to 122°F (-15°C to 50°C) Discharge: -4°F to 140°F (-20°C to 60°C) |
| Case Material | ABS Plastic |
| Weight | 1.5 lbs (0.68 kg) |
| Model | PowerSonic PS1221S |
| SKU | PS1221S |
| Warranty | 1 Year Replacement |
| Dimensions | Length: 150 mm (5.91") Width: 20 mm (0.80") Height: 89 mm (3.52") |
| Shelf Life | |
| 1 Month: 97% Capacity 3 Months: 91% 6 Months: 83% |
|
| Charging Guidelines | |
|
Cycle Use: 14.1–14.7V (2.35–2.45V/cell), Initial Current < 0.25C A Float Use: 13.5–13.8V (2.25–2.30V/cell) Temp Compensation Required Based on Environment |
|
| Compatible Chargers | |
| PSC-12300A-C, PSC-12300-PC, PSC-12500A-C, PSC-12500-PC | |
| Certifications | |
| U.L. Recognized, ISO9001:2015, D.O.T., I.A.T.A., F.A.A., C.A.B. Approved | |
| Fits Applications | |
| Emergency Lighting, Fire & Security Systems, Medical Equipment, General Purpose Backup | |
| We update this list as new information becomes available. See the product description for more details. | |
| Latest Update: 10th July 2025 | |
Payment & Security
Payment methods
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.
