Theradyne Rover High Performance Wheelchair Replacement Battery
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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 | 75 AH
Terminal Type
Nut & Bolt
SP12-75 NB (12V 75AH) replacement battery for Theradyne Rover wheelchair
The SP12-75 NB (12V 75AH) replacement battery is a factory-new, deep-cycle battery designed specifically for Theradyne Rover wheelchairs. Sold as individual units and intended to be used in pairs (Theradyne Rover requires 2 batteries), this high-performance battery delivers the deep cycle capacity and rugged construction needed for everyday mobility. Built with AGM and valve-regulated technology, it provides a maintenance-free, spill-proof power source that balances energy density and durability for reliable wheelchair operation.
Key Specifications
- Model: SP12-75 NB (12 V 75 AH)
- Manufacturer: SigmasTek
- Type: Wheelchair
- Battery Technology: Absorbent Glass Mat (AGM)
- Designed For: Deep Cycle Usage
- Construction: Valve Regulated, Spill Proof
- Characteristic: Power/Volume Ratio Yielding Unrivaled Energy Density
- Certifications: U.L. Recognized and CE Certified
- Condition: Brand New, Factory Fresh
- Warranty: 1 Year Warranty
- Voltage: 12 Volts
- Amp Hours: 75 AH
- Terminal: Nut & Bolt
Benefits
This SP12-75 NB replacement battery provides exceptional runtime and cycle endurance for powered mobility. Engineered as a deep-cycle unit, it tolerates repeated discharge and recharge throughout daily use, giving your Theradyne Rover the sustained performance necessary for extended outings and demanding terrain. The AGM and valve-regulated design ensures the battery remains spill-proof and maintenance-free, which simplifies ownership and reduces downtime.
The high power-to-volume ratio and energy density make this a true high-performance battery, delivering more usable energy per unit of space — particularly valuable in mobility systems where compartment size and weight distribution matter. The nut & bolt terminal design provides a secure mechanical connection for higher current demands and reliable contact over many cycles. Typical applications include electric wheelchairs, power chairs, mobility chairs, and mobility scooters, but the robust deep-cycle characteristics also suit emergency backup systems, UPS applications, and equipment that requires long-lasting power delivery.
Important installation note: the Theradyne Rover requires two batteries and you must reuse your existing cables and hardware to properly connect the new batteries. Choosing the SP12-75 NB ensures you get a long-lasting battery built to the same functional profile as the original, with UL and CE certifications for safety and performance assurance.
Ready to upgrade your Theradyne Rover with a reliable, long-lasting battery? Order the SP12-75 NB (12V 75AH) replacement battery today — get high-performance power, factory-fresh quality, and a 1 Year Warranty. Buy now to ensure fast shipping and confidence in your purchase.
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Payment & Security
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