OUTDO OT33-12(A) High Performance Replacement Battery
Couldn't load pickup availability
⚠️ Quick Reminder
🔹 Please ensure the original battery model number is listed in our product description and that your device model number matches for compatibility.
🔹 We only supply the batteries shown in the images. Device images are provided for reference only.
📸 Send Your Battery Photo / Unsure? Expert Help
Snap a photo or video of your battery and send it to us. We'll identify the exact replacement—fast and hassle-free. Our team has helped thousands of customers find the right battery quickly and easily.
POST YOUR IMAGE
Battery Care Guide
Battery Care Guide
Battery Usage and Maintenance Guidelines 🔋
Please read the following instructions carefully before using your new battery. Proper adherence will help ensure optimal performance and extended service life.
1. Cordless Phones, PDAs, and Power Tools (NiMH, NiCd, Lithium-Ion) 📱
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Operate the device until the battery reaches approximately 20% capacity.
- Avoid premature recharging.
- Do not allow the battery to fully discharge during the initial cycles.
Post-Conditioning
- Recharge the battery only when necessary.
- These batteries are capable of approximately 500 charge cycles:
- Once daily → ~500 days
Twice daily → ~250 days
Note: Even a partial recharge is considered a full cycle.
2. Sealed Lead Acid (SLA) Batteries 💡
- No conditioning required.
- Maintain the battery in a fully charged state; avoid complete discharge.
- Capable of 300–400 charge cycles.
- Expected service life: 2–3 years, depending on usage conditions.
3. Laptop Batteries (Lithium-Ion) 💻
Initial Charge
- Fully charge the battery overnight prior to first use.
Conditioning (First 2–6 Charge Cycles)
- Charge fully, then discharge to approximately 20% capacity.
- Avoid complete discharge, as some devices may not detect a fully drained battery.
Post-Conditioning
- Minimize frequent plugging and unplugging.
- Allow the battery to discharge moderately at least once per month to maintain optimal performance.
- Occasional cycling is recommended to sustain battery health.
Professional Recommendation
Adhering to these guidelines will enhance battery longevity and ensure reliable performance.
For further assistance regarding your battery or order, our customer support team is available to provide guidance.
Delivery and Shipping
Delivery and Shipping
⚡ Everything You Need to Know About Shipping with BatteryWeb (USA)
We know reliable delivery matters when you need power fast. Here’s how BatteryWeb makes shipping easy across the USA:
🚚 Shipping & Delivery
Most orders ship next business day (some products like sealed lead acid may take a little longer).
Same-day shipping available if you order before 11:59 AM (delivery depends on the carrier).
We ship nationwide using FedEx, UPS, USPS, DHL, and regional ground carriers.
Shipping costs are calculated automatically at checkout based on weight, distance, and carrier.
Transit times shown are estimates only (business days, no weekends/holidays).
🌍 Shipping Restrictions
Lithium batteries cannot be shipped by USPS or air. They must go via FedEx Ground, UPS Ground, or DHL Ground.
PO Box deliveries are only available via USPS.
At this time, we do not ship lithium batteries to Puerto Rico. NiMH, NiCd, and Alkaline can be shipped.
📦 Important Notes
Double-check your shipping address! If an incorrect address is used and the order is returned, re-shipping costs are the buyer’s responsibility.
If a product is temporarily out of stock, we’ll notify you right away with the expected restock date—or issue a refund if you prefer.
💲 Currency & Pricing
All prices are shown in USD.
Orders shipped outside the USA may be subject to local taxes, customs fees, or import duties. These are the buyer’s responsibility.
⚡ At BatteryWeb, we’re committed to getting your batteries delivered quickly, safely, and affordably—so you’ll always have the power you need, when you need it.
Disclaimer
Disclaimer
⚠️ Disclaimer: All product names, trademarks, and registered trademarks belong to their respective owners.
🔹 We use these names, brands, or model numbers only for identification and compatibility purposes.
🔹 Our products are generic replacement parts and are not affiliated with, endorsed by, or manufactured by the original equipment manufacturers (OEMs).
Volts & Amps
12 Volts | 35 AH
Terminal Type
Nut & Bolt
OUTDO OT33-12(A) Replacement Battery — Compatible with OUTDO OT33-12(A)
This replacement battery for the OUTDO OT33-12(A) is engineered to deliver reliable power, consistent performance, and peace of mind. Designed as a direct replacement for the OUTDO OT33-12(A) model, this rechargeable Sealed Lead Acid (SLA) unit uses Absorbent Glass Mat (AGM) technology to offer maintenance-free operation and spill-proof reliability. If you need a high-performance battery that fits perfectly and restores original runtime, this long-lasting battery is a dependable choice for UPS systems, emergency power, and critical backup applications.
Key Specifications
- Model Compatibility: OUTDO OT33-12(A)
- Battery Type: Rechargeable Sealed Lead Acid (SLA)
- Technology: Absorbent Glass Mat (AGM) Technology
- Design: Maintenance-Free with Spill Proof Construction
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Voltage: 12 Volts
- Capacity: 35 AH
- Terminal Type: Nut & Bolt
- Brand: SigmasTek (replacement)
- Warranty: 1 Year
Benefits
- Durability: Built with AGM construction to withstand vibration and hold up in frequent-use environments, making this replacement battery robust for long-term service.
- Long Life: Designed to provide consistent charge acceptance and slow self-discharge, this long-lasting battery minimizes downtime and replacement frequency in standby applications.
- High Performance: Delivers steady output and reliable starting/backup power for electronics, medical equipment, alarm systems, and mobility devices—an ideal high-performance battery for critical loads.
- Maintenance-Free Convenience: The sealed, spill-proof design eliminates the need for fluid checks or watering, simplifying upkeep for both professionals and end users.
- Safety & Certification: U.L. recognition and CE certification confirm that the battery meets rigorous safety and performance standards for a wide range of deployments.
- Versatile Applications: Excellent choice for UPS and data center backup, emergency lighting, alarm systems, power tools, security, telecom, and other standby power needs.
- OEM Compatibility: Engineered to meet or exceed OEM SLA specifications, ensuring fit, function, and reliable replacement of the OUTDO OT33-12(A) model.
Restore power reliability with this OUTDO OT33-12(A) replacement battery from SigmasTek. Whether you need a dependable UPS backup, emergency power source, or a high-performance battery for your equipment, this brand new, factory-fresh SLA unit gives you the performance and warranty coverage you expect. Order now to secure a long-lasting replacement and get your system back to peak performance.
-
Voltage
-
Amp Hours
-
Terminal Type
-
Length (in.)
-
Width (in.)
-
Height (in.)
-
Weight (lb.)
-
Warranty
-
Type
-
Manufacturer
-
Brand Replacement
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.



