1. Introduction
This manual provides essential information for the safe and efficient use of your KEMIMOTO Lithium LiFePO4 Powersports Battery. Please read this manual thoroughly before installation and operation, and keep it for future reference.
KEMIMOTO LiFePO4 batteries offer superior performance compared to traditional lead-acid batteries, featuring a longer lifespan, lighter weight, and enhanced starting power. They are designed for a wide range of powersports applications including motorcycles, ATVs, UTVs, and jet skis.

Figure 1: KEMIMOTO Lithium Powersport Battery (4Ah model shown, Model: MCB-400012H01)
2. Safety Information
⚠ WARNING: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
- Always wear appropriate personal protective equipment (PPE) such as safety glasses and gloves when handling batteries.
- Do not short-circuit the battery terminals.
- Do not disassemble, puncture, or damage the battery.
- Keep the battery away from fire, heat sources, and direct sunlight.
- Do not immerse the battery in water or other liquids.
- Ensure proper ventilation during charging and operation.
- Keep out of reach of children.
3. Package Contents
Please check the package for the following items:
- KEMIMOTO Lithium LiFePO4 Powersports Battery (selected capacity)
- Terminal Screws (2x Top cover MS screws *10mm for 2.5Ah model)
- Adjustable Battery Spacers (foam pads, quantity may vary by model)
4. Setup and Installation
Before installation, ensure your vehicle's ignition is off and the old battery is disconnected. Always connect the positive (+) terminal first and the negative (-) terminal last.
4.1. Terminal Connection Methods
The KEMIMOTO battery features pure copper terminals with built-in threads for easy and convenient wiring. Choose the most suitable connection method for your application:

Figure 2: Various Terminal Connection Methods
- Method 1: Bolt directly through the terminal lug into the battery terminal's top thread.
- Method 2: Bolt through the terminal lug and a washer, securing it to the side thread of the battery terminal.
- Method 3: Bolt through the terminal lug and a washer, securing it to the top thread of the battery terminal.
4.2. Universal Mounting with Spacers
Your KEMIMOTO battery comes with adjustable battery spacers (foam pads) to ensure a secure fit in various battery compartments. These spacers allow for universal mounting and compatibility with many lead-acid battery sizes (e.g., YTX7A-BS, YTX9-BS, YTZ10S-BS, YT12A-B2, YTX12-BS, YTZ12S-BS, YTX14-BS, YTX16-BS).
- Measure the available space in your vehicle's battery tray.
- Apply the self-adhesive spacers to the bottom or sides of the battery as needed to achieve a snug fit.
- Place the battery into the tray and secure it with any existing battery hold-down straps or clamps.
4.3. Installation Steps (General)
- Ensure the vehicle's ignition is OFF.
- Disconnect the negative (-) terminal from the old battery first, then the positive (+) terminal.
- Remove the old battery.
- If necessary, apply the provided spacers to your new KEMIMOTO battery to match the dimensions of the old battery or the battery tray.
- Place the new KEMIMOTO battery into the battery tray.
- Connect the positive (+) terminal first, then the negative (-) terminal. Ensure all connections are tight and secure.
- Verify all connections and ensure no tools are left in the battery compartment.
Video 1: KEMIMOTO Lithium Battery Product Overview and Installation Demonstration
5. Operating Instructions
5.1. Power Display
Your KEMIMOTO LiFePO4 battery is equipped with a convenient power display button. Press the button to check the current charge level:
- Full: All LEDs lit
- 90%: Most LEDs lit
- 60%: Middle LEDs lit
- 30%: Fewest LEDs lit
This feature allows you to quickly assess the battery's state of charge without additional equipment.
6. Maintenance
KEMIMOTO LiFePO4 batteries are designed for minimal maintenance:
- No activation required.
- No sulfation.
- No acid or water to add.
- No regular maintenance needed.
Periodically check the battery terminals for cleanliness and tightness. If necessary, clean terminals with a wire brush and ensure connections are secure.

Figure 3: LiFePO4 Battery Advantages - No Maintenance Required
7. Troubleshooting
If you experience issues with your battery, consider the following:
- No Power/Weak Start: Check terminal connections for tightness and corrosion. Ensure the battery is adequately charged using the power display.
- Battery Not Charging: Verify the vehicle's charging system (stator, regulator/rectifier) is functioning correctly. Consult a qualified technician if unsure.
- Battery Discharges Quickly: Check for parasitic draws on your vehicle's electrical system when the ignition is off.
For persistent issues, contact customer support.
8. Specifications
KEMIMOTO LiFePO4 batteries are built with high-quality components, including pure copper terminals for better conductivity and high current discharge support.

Figure 4: Pure Copper Terminals for Superior Performance
8.1. General Specifications
| Feature | Description |
|---|---|
| Battery Type | Lithium Iron Phosphate (LiFePO4) |
| Rated Voltage | 12.8 V |
| Case Material | ABS |
| External Testing Certification | CE, UL2743, IEC, FCC, MSDS, UN38.3, 1.2m Drop Test |
| Charge Temperature Range | 0-55°C / 0-131°F |
| Discharge Temperature Range | -20-60°C / -4-140°F |
8.2. Model-Specific Specifications
| Specification | 12V 2.5Ah 200CCA | 12V 4Ah 320CCA | 12V 6Ah 480CCA |
|---|---|---|---|
| Battery Capacity | 2.5 Ah | 4 Ah | 6 Ah |
| Cold Cranking Amps (CCA) | 200 A | 320 A | 480 A |
| Watt Hour (Wh) | 32 Wh | 51.2 Wh | 76.8 Wh |
| Item Weight | 1.21 lbs / 0.68 kg | 2.6 lbs / 1.18 kg | Approx. 1.5 kg (estimated) |
| Item Length | 4.45 in (11.3 cm) | 5.8 in (14.73 cm) | Varies by model |
| Item Width | 2.76 in (7.0 cm) | 3.2 in (8.13 cm) | Varies by model |
| Item Height | 3.35 in (8.5 cm) | 3.6 in (9.14 cm) | Varies by model |

Figure 5: Specifications for 12V 4Ah 320CCA Model

Figure 6: Specifications for 12V 2.5Ah 200CCA Model
The product has been certified for conformity. A Certificate of Conformity (No. CCI231000315ENCER) is available, confirming compliance with Directive 2011/65/EU (RoHS) regarding hazardous substances.
9. User Tips
- Initial Charge: While LiFePO4 batteries often come pre-charged, it's good practice to fully charge them before the first use for optimal performance.
- Cold Weather Performance: Although LiFePO4 batteries perform well in cold, extreme cold can temporarily reduce capacity. If starting in very cold conditions, a brief load (like turning on headlights for 30 seconds) can help warm the battery internally and improve cranking power.
- Proper Charger: Use a charger specifically designed for LiFePO4 batteries, or one that has a LiFePO4 mode, to ensure proper charging and battery longevity.
- Storage: If storing the vehicle for an extended period, ensure the battery is at least 50% charged. LiFePO4 batteries have a very low self-discharge rate, but periodic checks are still recommended.
10. Warranty and Support
For warranty information, technical support, or service inquiries, please refer to your purchase documentation or contact the seller directly. Keep your proof of purchase for any warranty claims.