Sigma SG645T1 6V 4.5Ah AGM Battery is a rechargeable AGM sealed lead-acid battery. Each battery is rated 6V 4.5Ah. Match the dimensions, terminal connections and polarity to your equipment.
Sigma SG645T1 battery specifications
| Specification | Details |
|---|---|
| Model reference | SG645T1 |
| Nominal voltage | 6V |
| Capacity | 4.5Ah |
| Chemistry | AGM sealed lead-acid |
| Rechargeable | Yes |
| Terminal type | T1/F1 blade |
| Terminal width | 0.187 inch / approximately 4.75 mm |
| Listed Sigma dimensions | 2.76″ L × 1.85″ W × 3.98″ H |
| Listed Sigma weight | 1.59 lb |
Check the fit of this compact 6V battery
Measure the battery compartment and compare its available space with the listed dimensions. Check any retaining strap or bracket, and allow clearance for the wiring above the terminals.
Confirm that your equipment and charger support a 6V AGM sealed lead-acid battery with the required capacity. A matching voltage alone does not establish compatibility.
If an alternative brand is supplied, confirm its dimensions and connections meet your equipment’s requirements; equal voltage and capacity do not guarantee identical physical specifications.
Match the T1/F1 connections
The SG645T1 uses 0.187-inch T1/F1 blade terminals. Check the width of your cable connectors and the location of the positive and negative connections.
T1/F1 terminals are narrower than 0.250-inch T2/F2 terminals. Compare the actual connections rather than choosing a replacement solely by its appearance or amp-hour rating.
Replacing a battery with a different capacity?
Check your equipment manufacturer’s specifications before changing from another capacity to 4.5Ah. The replacement must meet the electrical requirements, fit the compartment, and connect correctly to the existing wiring.
For equipment that uses multiple batteries, verify the required quantity and configuration as well as the specifications of each battery.
Order online or request volume pricing
Order from Rocket Distributing, or request a quote for maintenance, service, and resale quantities.
Email Sales@RocketDistributing.com with the SG645T1 model reference, quantity, delivery location, and required timing. State whether Sigma branding is required. For help checking a match, include photos of your existing battery label and terminals.
Browse our Sigma Batteries collection to compare additional capacities, case sizes, and terminal options.