Honda Goldwing Tour DCT / ゴールドウイング/ GYZ20LからGYZ20HL-Cへ純正バッテリー交換 / OEM Battery Replacement
Honda Gold Wing(SC79)の純正バッテリー交換動画です。 今回は、ユアサ純正バッテリー GYZ20L(廃番) から、現行純正 GYZ20HL-C へ交換しました。 交換手順や交換時の注意点を、実際の作業を通して紹介しています。 Gold Wingのバッテリー交換を検討している方や、GYZ20LとGYZ20HL-Cの違いが気になる方の参考になれば幸いです。 ⸻ AGMバッテリーとは? 今回使用した GYZ20HL-C は、AGM(Absorbent Glass Mat) タイプのバッテリーです。 電解液をガラスマットに吸収させた密閉構造のため、 液漏れしにくい 振動に強い 大電流を安定して供給できる 自己放電が少ない という特徴があります。 大型ツアラーであるGold Wingとの相性も優れています。 ⸻ CCA 250A → 320Aとは? CCA(Cold Cranking Amps)は、エンジン始動時に供給できる電流能力を表す指標です。 今回の現行純正 GYZ20HL-C は、 250CCA → 320CCA へ向上しています。 CCAが高くなることで、 セルモーターへ余裕を持って電流を供給できる 寒い時期でも始動性が安定しやすい 電圧降下が少なく、ECUや電子制御機器にも有利 といったメリットがあります。 ※CCAの向上は「始動性能が28%向上する」という意味ではなく、始動時の電流供給能力に余裕が生まれることを示しています。 ⸻ 使用バッテリー メーカー:YUASA 旧純正:GYZ20L(廃番) 現行純正:GYZ20HL-C タイプ:AGMバッテリー ⸻ 車両 Honda Gold Wing Tour DCT Airbag SC79(2021年モデル) Honda Gold Wing (SC79) Genuine Battery Replacement This video shows how I replaced the genuine battery on my 2021 Honda Gold Wing Tour DCT Airbag (SC79). The original YUASA GYZ20L battery (now discontinued) has been replaced by the current genuine model, GYZ20HL-C. In this video, you’ll see the complete replacement procedure, important installation tips, and the differences between the GYZ20L and GYZ20HL-C. If you’re planning to replace the battery on your Gold Wing or wondering about the differences between these two batteries, I hope this video helps. ⸻ What is an AGM Battery? The GYZ20HL-C is an AGM (Absorbent Glass Mat) battery. Unlike conventional flooded lead-acid batteries, the electrolyte is absorbed into fiberglass mats, providing several advantages: Spill-resistant design Excellent vibration resistance Stable high-current output Lower self-discharge during storage These characteristics make AGM batteries an excellent choice for large touring motorcycles like the Honda Gold Wing. ⸻ What Does CCA 250A → 320A Mean? CCA (Cold Cranking Amps) measures a battery’s ability to deliver current during engine starting, especially in cold conditions. The current genuine GYZ20HL-C has a CCA rating of 320A, compared to 250A for the previous GYZ20L. This higher CCA provides: Greater reserve power for engine starting More reliable starts in cold weather Less voltage drop during cranking, helping support ECUs and other electronic systems Note: A higher CCA rating does not mean the engine starts “28% better.” It simply means the battery has greater current delivery capability and more starting reserve. ⸻ Battery Used Manufacturer: GS Yuasa Previous Genuine Battery: GYZ20L (Discontinued) Current Genuine Battery: GYZ20HL-C Type: AGM (Absorbent Glass Mat) ⸻ Motorcycle Honda Gold Wing Tour DCT Airbag SC79 (2021 Model) ⸻

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