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SigmasTek  |  SKU: BW-12986

Sonnenschein A212/15 G Compatible Replacement Battery

Sale price $72.00 USD Regular price $83.70
Shipping calculated at checkout.

➤ Meets or exceeds OEM SLA battery specifications for reliable performance

➤ Absorbent Glass Mat (AGM) technology ensures long-lasting power and safety

➤ Maintenance-free and spill-proof design for hassle-free use

➤ U.L. Recognized and CE Certified for guaranteed quality and safety

➤ Includes 1-year warranty and factory fresh condition for peace of mind


📦🚀 FAST SHIPPING: Usually ships same day if ordered before 2 PM EST

⚠️ 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.

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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

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: 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 | 18 Ah

Terminal Type

Nut & Bolt

Sonnenschein A212/15 G Replacement Battery - Compatible with Sonnenschein A212/15 G

For dependable power and guaranteed compatibility, this replacement battery for the Sonnenschein A212/15 G is engineered to meet or exceed OEM SLA specifications. Offering consistent performance and reliability, the Sonnenschein A212/15 G replacement is an excellent choice when you need a high-performance battery that is also maintenance-free. Ideal for emergency systems and routine replacements, this long-lasting battery ensures your equipment remains operational when it matters most.

Key Specifications

  • Model: Sonnenschein A212/15 G (Replacement)
  • Brand (original compatibility): Sonnenschein
  • Replacement Brand: SigmasTek
  • Technology: Absorbent Glass Mat (AGM) Technology
  • Design: Maintenance-Free
  • Construction: Spill Proof
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Voltage: 12 Volts
  • Capacity: 18 Ah
  • Terminal Type: Nut & Bolt

Benefits

This Sonnenschein A212/15 G replacement battery combines AGM technology and spill-proof construction for enhanced durability and safe operation. As a high-performance battery designed for emergency and standby applications, it offers dependable charge acceptance and a stable discharge profile. Its maintenance-free design reduces service time and eliminates the need for electrolyte maintenance, making it an attractive option for busy facilities and technicians.

Certified to UL and CE standards, this replacement battery is suited to critical roles such as emergency lighting, security alarms, fire alarms, and medical equipment. It is also a reliable solution for consumer electronics, home & garden backup systems, and UPS setups where a long-lasting battery is essential. For applications involving emergency power, portable tools, or backup systems, this unit provides reliable, consistent energy as a direct replacement for the Sonnenschein A212/15 G.

Easy to install with nut & bolt terminals and shipped brand new and factory fresh, the battery arrives ready for immediate use. Backed by a 1 year warranty, this replacement battery delivers value and confidence for your critical power needs.

Don’t wait until a failure interrupts operations—order this replacement Sonnenschein A212/15 G high-performance, long-lasting battery today and ensure your systems remain protected.


Payment & Security

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