1. はじめに
This manual provides essential information for the safe and effective use of your MARXON AGM BCI 48 car battery. This 12V, 70Ah, 760CCA battery is designed for automotive applications, including vehicles equipped with start-stop functionality. Please read this manual thoroughly before installation and operation.

Image 1.1: The MARXON AGM BCI 48 Car Battery, a 12V 70AH 760CCA maintenance-free automotive replacement battery.
2. 安全情報
Always prioritize safety when handling and installing automotive batteries. Failure to follow these instructions can result in serious injury or damage.
- 目の保護: 電池を扱うときは必ず安全メガネまたはゴーグルを着用してください。
- 皮膚の保護: Wear gloves and protective clothing to prevent contact with battery acid.
- 換気: Ensure adequate ventilation when charging or working near batteries, as they can produce explosive gases.
- 禁煙/火気厳禁: 火花、炎、発煙物をバッテリーから遠ざけてください。
- ツール: Use insulated tools to prevent short circuits. Avoid placing metal objects on top of the battery.
- 子供とペット: 電池は子供やペットの手の届かないところに保管してください。
- 応急処置: バッテリー液に触れた場合は、すぐに水で洗い流し、医師の診察を受けてください。
3 製品の特徴
The MARXON AGM BCI 48 battery offers several advanced features for reliable vehicle performance:
- AGM テクノロジー: This Absorbent Glass Mat (AGM) battery is maintenance-free, eliminating the need to add acid or water.
- スタートストップ互換性: Engineered to support vehicles with start-stop systems, contributing to fuel efficiency and reduced CO2 emissions.
- 急速充電: Utilizes advanced materials for improved charge acceptance, resulting in up to 40% faster charging compared to traditional SLA batteries.
- 耐久性の向上: Features a patented alloy construction for superior corrosion resistance and leak-proof performance.
- 高性能: Delivers 12V, 70Ah capacity, and 760 Cold Cranking Amps (CCA) for reliable starting power.
- 広い温度範囲: Designed to operate effectively in extreme temperatures, from -22°F to 140°F.

Image 3.1: Key features of the MARXON AGM battery, including its maintenance-free design, 760 CCA, 46.53 lbs weight, 12V voltage, and 70Ah capacity.

Image 3.2: The MARXON AGM battery is designed for reliable performance across a wide temperature range, from extreme heat to extreme cold.
4. 仕様
| 仕様 | 価値 |
|---|---|
| ブランド | マルソン |
| モデル | H6 (BCI 48) |
| 巻tage | 12V |
| 容量 | 70Ah |
| コールドクランキング Amps(CCA) | 760A |
| アイテム重量 | 46.53ポンド(21.1kg) |
| 製品寸法(長さ x 幅 x 高さ) | 10.95 x 6.89 x 7.48 インチ (27.8 x 17.5 x 19 cm) |
| 端末タイプ | A1 |
| セルの数 | 1 |
| テクノロジー | AGM(吸収ガラスマット) |
| メンテナンス | メンテナンスフリー |

Image 4.1: Detailed dimensions of the MARXON BCI 48 battery, indicating its length, width, and height, along with the A1 terminal type.

Image 4.2: A visual guide to confirm battery size, terminal type, and polarity, listing compatible sizes including BCI 48.
5. インストール手順
Before beginning, ensure your vehicle is turned off and the parking brake is engaged. Refer to your vehicle's owner's manual for specific battery replacement procedures.
- 準備する: Gather necessary tools: wrench, battery terminal cleaner, wire brush, safety glasses, and gloves.
- 古いバッテリーを取り外す: First, disconnect the negative (-) terminal cable, then the positive (+) terminal cable. Remove any hold-down clamps or straps securing the old battery.
- 古いバッテリーを取り外す: Carefully lift and remove the old battery. Be aware of its weight (approximately 46.53 lbs).
- バッテリートレイとケーブルを清掃します。 バッテリートレイと端子を清掃してくださいamps with a wire brush and battery terminal cleaner to remove any corrosion.
- 新しい電池を取り付けます: Carefully place the MARXON AGM BCI 48 battery into the battery tray, ensuring it is seated securely.
- 安全なバッテリー: ホールドダウンクランプを再度取り付けますamps or straps to firmly secure the battery in place.
- 新しいバッテリーを接続します: First, connect the positive (+) terminal cable, then connect the negative (-) terminal cable. Ensure connections are tight and secure.
- 最終チェック: Double-check all connections and ensure no tools or metal objects are left near the battery.
ビデオ5.1: 概要view of the MARXON AGM battery, showing its physical appearance and terminal caps, useful for visual identification during installation.
6. バッテリーの操作
Once properly installed, the MARXON AGM BCI 48 battery operates automatically as part of your vehicle's electrical system.
- 通常操作: The battery provides power for starting the engine and running vehicle electronics. It recharges automatically via the vehicle's alternator.
- Start-Stop Functionality: For vehicles equipped with start-stop systems, the battery is designed to handle frequent engine starts and stops, optimizing fuel consumption and reducing emissions.
- 寒冷地性能: The 760 CCA rating ensures reliable starting even in cold conditions.

Image 6.1: The MARXON AGM battery is designed to support vehicles with start-stop technology, enhancing fuel efficiency.
7. メンテナンス
The MARXON AGM BCI 48 battery is a maintenance-free unit, meaning it does not require periodic water additions. However, some general care can help ensure its longevity and optimal performance:
- ターミナルを清潔に保つ: Periodically inspect battery terminals for corrosion. If present, clean with a wire brush and a baking soda/water solution. Ensure terminals are tight.
- ホールドダウンをチェック: Ensure the battery is securely fastened in its tray to prevent vibration damage.
- 過放電を避ける: While AGM batteries are more resilient to deep discharge than traditional lead-acid batteries, consistently draining the battery completely can shorten its lifespan. If the vehicle is stored for extended periods, consider using a compatible AGM battery maintainer.
- 通常の車両使用: Regular driving helps keep the battery charged. Short trips may not fully recharge the battery.
8。 トラブルシューティング
If you experience issues with your battery, perform the following basic checks:
| 症状 | 考えられる原因 | 解決 |
|---|---|---|
| エンジンがゆっくり始動するか、全く始動しない | Low battery charge, loose or corroded terminals | Check terminal connections and clean if necessary. Charge the battery with an appropriate AGM charger. |
| ヘッドライトが暗い | バッテリー残量低下tage | バッテリー容量を確認するtage with a multimeter. If low, charge the battery. |
| ダッシュボードのバッテリー警告灯 | Charging system issue (alternator), or battery fault | バッテリー容量を確認するtage. If battery is charged, have your vehicle's charging system inspected by a qualified mechanic. |
Video 8.1: A demonstration of checking battery voltage with a multimeter, showing a reading of 12.7V, which indicates a healthy charge level for troubleshooting purposes.
If these steps do not resolve the issue, consult a professional automotive technician.
9. 保証とサポート
The MARXON AGM BCI 48 battery comes with a 3年間保証, providing coverage against manufacturing defects under normal use conditions.
For warranty claims, technical support, or further assistance, please contact MARXON customer service through the retailer where the product was purchased or visit the official MARXON web連絡先情報のサイト。