Trojan J305E-AC Deep Cycle Battery — 6V 305Ah (Flooded Lead Acid)
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Trojan J305E-AC 6V Deep-Cycle Flooded Lead-Acid Battery
The J305E-AC 6V flooded lead-acid battery provides outstanding sustained power for aerial work platforms and other demanding applications—helping avoid downtime and increase productivity.
Do not install or charge this battery in a sealed or non-ventilated compartment. Constant under-charging or over-charging will damage the battery and shorten its life. Always follow correct flooded lead-acid charging practices and local safety regulations.
Features & Benefits
- Deep-cycle design for sustained power and long runtimes in demanding applications.
- Maxguard® Advanced Design Separator and Alpha Plus® paste formulation for long life, industry-leading performance and lower lifecycle costs.
- Heat and corrosion-resistant maroon case for tough service environments.
- Braided rope handles for easier, safer lifting and installation.
- HydroLink™ single-point watering system available to simplify maintenance.
- Only 5–15% self-discharge per month, depending on storage temperature.
- 99% recyclable for more sustainable end-of-life handling.
Two Case Options
- Polyon™ case for exceptional durability in heavy-service applications.
- Standard polypropylene case for general/standard applications.
Typical Applications
- Aerial work platforms (MEWPs, scissor lifts, boom lifts)
- Floor scrubbers and floor cleaning machines
- Golf carts and utility vehicles
- Renewable energy systems (solar, off-grid, backup)
- Industrial motive power and material handling
- Backup power and standby systems
Physical Specifications
| Model | J305E-AC |
|---|---|
| BCI Model Name | 902 J305E-AC |
| Battery Type | Deep-Cycle Flooded/Wet Lead-Acid |
| Voltage | 6V |
| Cell Count | 3 cells |
| Terminal Type | Embedded Universal Terminal (EUT) — Reverse |
| Terminal Height | 1.10 in (28 mm) |
| Torque | 95 – 105 in-lb (11 – 12 Nm) |
| Bolt Size | 5/16" |
| Length | 12.35 in (314 mm) |
| Width | 6.85 in (174 mm) |
| HeightF | 14.41 in (366 mm) |
| WeightH | 83 lb (38 kg) |
| Material | Polypropylene (Polyon™ option) |
| Colour | Maroon |
| Watering | HydroLink™ Watering System (optional) |
Electrical Specifications
Cranking Performance
This model is designed as a deep-cycle battery; CCA and CA ratings are not specified.
Capacity – MinutesA
| @ 25 Amps | 645 minutes |
|---|---|
| @ 75 Amps | 160 minutes |
Capacity – Amp-Hours (Ah)B
| 5-Hour Rate | 250 Ah |
|---|---|
| 10-Hour Rate | 280 Ah |
| 20-Hour Rate | 305 Ah |
| 100-Hour Rate | 339 Ah |
| Energy | 2.03 kWh |
| Internal Resistance | 2.03 mΩ |
| Short Circuit Current | — |
Charging Instructions (at 77°F / 25°C)
Use a charger compatible with flooded lead-acid batteries and set according to the system voltage below.
| System Voltage | Bulk Charge | Float Charge | Equalize Charge |
|---|---|---|---|
| 6V | 7.41 V | 6.75 V | 8.10 V |
| 12V | 14.82 V | 13.50 V | 16.20 V |
| 24V | 29.64 V | 27.00 V | 32.40 V |
| 36V | 44.46 V | 40.50 V | 48.60 V |
| 48V | 59.28 V | 54.00 V | 64.80 V |
Charging temperature compensation:
• Add 0.005 V per cell for every 1°C below 25°C (77°F).
• Subtract 0.005 V per cell for every 1°C above 25°C (77°F).
Operational Data
| Operating Temperature | -4°F to 113°F (-20°C to +45°C). At temperatures below 32°F (0°C), maintain a state of charge greater than 60%. |
|---|---|
| Self-Discharge | 5–15% per month, depending on storage temperature conditions. |
State of Charge – Open-Circuit Voltage Reference
| Percentage Charge | Specific Gravity | Per Cell (V) | 6V Battery (V) |
|---|---|---|---|
| 100% | 1.277 | 2.122 | 6.37 |
| 90% | 1.258 | 2.103 | 6.31 |
| 80% | 1.238 | 2.083 | 6.25 |
| 70% | 1.217 | 2.062 | 6.19 |
| 60% | 1.195 | 2.040 | 6.12 |
| 50% | 1.172 | 2.017 | 6.05 |
| 40% | 1.148 | 1.993 | 5.98 |
| 30% | 1.124 | 1.969 | 5.91 |
| 20% | 1.098 | 1.943 | 5.83 |
| 10% | 1.073 | 1.918 | 5.75 |
A Capacity in minutes at a constant discharge rate at 80°F (27°C), to a cut-off voltage of 1.75 V/cell. Capacities are based on peak performance.
B Amp-hour capacity at a constant discharge rate at 80°F (27°C), to a cut-off voltage of 1.75 V/cell. Capacities are based on peak performance.
Designed and tested in compliance with applicable BCI, DIN, BS and IEC standards. Information subject to change without notice by Trojan Battery Company.
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🔋 What’s mAh All About?
🔋 What’s mAh All About?
mAh stands for milliamp hours—basically, how much "fuel" your battery can hold. A higher or lower mAh than your original battery? No worries! 🙌 It won’t affect charging or operation—just means your device might run a bit longer or shorter between charges. Still 100% compatible. Still 100% awesome. 💪✨
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Before ordering please read
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