SigmasTek SP6-8.5 Replacement Battery

6 Volt 9 Amp Hour Sealed Lead Acid Battery Replacement with F1 Terminals by SigmasTek SP6-8.5
Image Source: Amazon.com

SigmasTek SP6-8.5 Battery

The SigmasTek SP6-8.5 is a 6V 9Ah SLA AGM Battery with F1 Terminals.

  • Type: Rechargeable Sealed Lead Acid (SLA), Absorbent Glass Mat (AGM)
  • Voltage / Capacity: 6V 9Ah
  • Length: 98 mm (3.86″)
  • Width: 56 mm (2.2″)
  • Height: 118 mm (4.65″)
  • Height with Terminal: 120 mm (4.72″)
  • Terminal Type: F1 – 4.75 mm wide (3/16″)

Additional Info


Below are frequently asked questions and battery care tips for the 6 Volt 9 Amp Hour Sealed Lead Acid Battery Replacement with F1 Terminals by SigmasTek, Battery Model SP6-8.5.

Where can I get a SigmasTek 6 volt 9 amp hour battery?

You can buy a new SigmasTek 6V 9Ah battery on Amazon (model number SP6-8.5).

Be sure to confirm the battery dimensions and available terminals (F1 or F2) before purchasing to ensure full compatibility with your device, application or system.

What is the difference between F1 and F2 Terminals and how do I know which one I need?

F1 (also known as T1) and F2 (also known as T2) terminals look nearly identical but there is a 1/16″ difference between the two. The F1 Faston Tab is 3/16″ (0.187″ or 4.75 mm) wide while the F2 Faston Tab is 1/4″ (0.25″ or 6.35 mm) wide.

If you are not sure which terminal type you need, simply measure the width of the terminals on your current battery.

If the battery you want to buy is not available with the terminal type you need, there are F1 to F2 and F2 to F1 terminal adapters available on Amazon that offer an easy and affordable solution.

What is the SigmasTek SP6-8.5 battery?

The SigmasTek SP6-8.5 battery is a 6V 9Ah rechargeable sealed lead acid (SLA) battery from the SigmasTek SP Series with an absorbent glass mat (AGM) design.

Designed with a safety vent that releases gas to prevent excessive internal pressure buildup, SLA batteries offer many benefits as they are low maintenance, leakproof / spillproof, reliable, and position insensitive (they can operate in any orientation).

The SigmasTek SP Series are multi-functional for both cycle and standby use, and they have a life expectancy of 3-5 years in standby use.

Batteries from the SP Series are typically used in general purpose applications.

How can I extend the life of my SigmasTek SP Series sealed lead acid battery while it is in storage?

In general, it is not recommended to leave sealed lead acid batteries in storage while in a discharged or partially charged state. Sealed lead acid batteries self-discharge about 3% every month and if they are not recharged periodically, you may not be able to recover its fully capacity.

To help extend the life of your SigmasTek SP Series battery, store your battery in a cool and dry place at 25°C (77°F).

A freshening charge for your SigmasTek SP Series battery is recommended at six months if stored at 25°C (77°F). For higher temperatures, the time interval will be shorter.

What does it mean if my SigmasTek battery is swollen?

Immediately remove and discontinue use of any sealed lead acid battery if it is bulging or bloated as it means it has become damaged.

Sealed lead acid batteries can become damaged and swollen if they are overcharged or short-circuited. This can happen if the battery charger is providing too much current, such as using a 24V charger to charge a 12V battery.

Be sure to take care in properly charging your SigmasTek battery by using a good quality charger that is fully compatible with your battery.

SigmasTek SP6-8.5 F1 Battery Replacement Cross-Reference & Compatibility List

The 6V 9Ah SigmasTek SP6-8.5 battery with F1 terminals fits and replaces the following and more:

  • 3FM8.5
  • DJW6-8.5H
  • Kung Long WP9-6A
  • NP8.5-6
  • PS-682
  • PS-682F
  • SLA094

Quick Summary of SigmasTek SP6-8.5 F1 Battery Specifications

Brand / ManufacturerSigmasTek
Battery Model No.SP6-8.5
Common Replacement ForSLA094
TypeSealed Lead Acid / AGM
Nominal Voltage6V
Nominal Capacity (20HR)9Ah
Terminal TypeF1, No. 187 (0.187″ / 4.75 mm)
Length3.86″ (98 mm)
Width2.2″ (56 mm)
Height4.65″ (118 mm)
Total Height with Terminal4.72″ (120 mm)
Approx. Weight3.35 lbs (1.52 kg)

Last Modified: February 23, 2019
Originally published on February 21st, 2019 in Alarm & Security, Consumer Electronics, Electric Carts, Wheelchairs, Scooters & Bikes, Emergency First Responder, Emergency Lighting, Medical, Renewable Energy, Switchgear, Telecommunications, UPS & Battery Backup.


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