The 1996 Honda FourTrax 300 uses a standard 12-volt lead-acid battery, with a typical capacity around 6 amp-hours (Ah). The most common replacement is a 12V battery labeled YTX7L-BS or an equivalent 6–7 Ah unit.
Context and what to expect
Honda’s FourTrax 300 from this era relied on an electric-start system in many trims, which means a 12-volt battery is required. If you have a non-electric-start variant, the battery setup may differ or be optional. Regardless, you’ll be looking for a compact 12V battery designed for motorcycles or ATVs, with appropriate mounting and terminal layout.
Battery specifications
Here’s a concise look at the electrical specs that matter when you shop for a replacement.
Voltage and chemistry
12-volt lead-acid battery. Most aftermarket replacements available for ATVs are maintenance-free flooded or AGM (absorbed glass mat) types.
Capacity and fitment
Typical capacity is about 6 Ah (roughly 6–7 Ah in some variants). This affects starting power and how long the battery can sustain electrical loads if the engine isn’t running. Exact capacity can vary slightly by brand and model year, so check the battery label or your service manual for the VIN-specific spec.
Note: The exact capacity and fit can vary by production run or sub-model. Always verify against your bike’s battery tray dimensions, terminal orientation, and the wiring harness before buying.
Common replacement options are widely compatible with the TRX300’s mounting and electrical layout, but always confirm fitment with your specific unit.
- YTX7L-BS — 12V, around 6 Ah; the most common replacement for mid-size ATVs including the TRX300. Standard positive/negative post positions fit typical Honda wiring harnesses.
- YTX7A-BS — 12V, around 6–7 Ah; slightly taller than the 7L variant and may require checking clearance and terminal layout.
- AGM or flooded 12V 6–7 Ah options from reputable brands — maintenance-free variants are widely sold; confirm tray and vent/fit compatibility.
When shopping, verify the exact dimensions and terminal arrangement against your bike’s battery tray and harness connectors to ensure a proper fit.
Installation tips and maintenance
Before installing a replacement, inspect the battery tray for corrosion or damage, ensure the terminals are clean and properly oriented, and route any vent tubes according to the original setup. If the quad sits unused for long periods, consider a maintainer or trickle charger to preserve battery life.
Conclusion / Summary
The 1996 Honda FourTrax 300 typically uses a 12-volt lead-acid battery around 6 Ah in capacity. The most common replacement is the YTX7L-BS or an equivalent 12V battery. Always verify fitment with your specific model year and sub-model by consulting the service manual or a parts fiche, as small variations can occur.
Summary
In short, expect a 12V, roughly 6 Ah battery for the 1996 FourTrax 300, with YTX7L-BS as the standard replacement option. Check your VIN-specific specs and measure the battery tray to ensure the best fit.


