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SigmasTek  |  SKU: BW-7153

Swish-Err 1650H Long Life Lawn Mower Replacement Battery

Sale price $102.50 USD Regular price $135.64
Shipping calculated at checkout.

➤ Factory fresh replacement battery for Swish-Err 1650H Lawn Mower

➤ 100% compatible with original Swish-Err 1650H battery model SP12-35 NB

➤ Absorbent Glass Mat (AGM) technology for enhanced durability and deep cycle use

➤ Valve regulated, spill-proof design ensures safe and maintenance-free operation

➤ Backed by 1-year warranty and certified for quality with U.L. and CE recognition


📦🚀 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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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.
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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 | 35 AH

Terminal Type

Nut & Bolt

Swish-Err 1650H Lawn Mower Battery (Replacement) - Compatible with Swish-Err 1650H

Replace your worn battery with a factory-fresh, high-quality replacement battery engineered specifically for the Swish-Err 1650H. Built for reliable performance and dependable power delivery, this unit ensures your lawn mower returns to peak operation quickly. With proven reliability and deep-cycle capability, the Swish-Err 1650H replacement is an excellent choice for owners seeking a high-performance battery that delivers consistent starting power and long run-times for regular mowing tasks.

Key Specifications

  • Brand: Swish-Err
  • Compatible Model: Swish-Err 1650H
  • Battery Model: SP12-35 NB
  • Voltage: 12 Volts
  • Capacity: 35 AH (Amp-hours)
  • Terminal Type: Nut & Bolt
  • Technology: Absorbent Glass Mat (AGM)
  • Designed For: Deep Cycle Usage
  • Construction: Valve Regulated Spill Proof
  • Performance Feature: Power/Volume Ratio Yielding Unrivaled Energy Density
  • Certifications: U.L. Recognized and CE Certified
  • Condition: Brand New, Factory Fresh
  • Warranty: 1 Year Warranty
  • Quantity Required: 1 battery required (per Swish-Err 1650H)

Benefits

This replacement battery brings durability and consistent performance to your lawn mower. Constructed with AGM technology and valve-regulated, spill-proof construction, it resists vibration, reduces maintenance, and provides safe, reliable power over many cycles. Designed for deep cycle usage, it supports extended run times and frequent use without compromising capacity — making it an ideal long-lasting battery for demanding outdoor equipment.

The superior power-to-volume ratio yields high energy density so you get strong cranking power and sustained output in a compact package. Whether you’re restoring an older mower or keeping a fleet of machines ready for peak season, this high-performance battery delivers dependable starts and consistent operation. Typical applications extend beyond lawn mowers to include UPS backup systems, emergency power setups, and various power tools that require stable 12V deep-cycle performance.

Certified by U.L. and CE, and backed by a one-year warranty, this battery is performance-guaranteed and factory-fresh for peace of mind. Use your existing cables and hardware for installation, and expect fast shipping on in-stock items so you can get back to work quickly.

Ready to upgrade? Purchase your Swish-Err 1650H replacement battery (SP12-35 NB, 12V 35AH, Nut & Bolt) now to secure a long-lasting, high-performance battery that restores reliable power to your mower. Buy with confidence today!


Payment & Security

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