High-Tech Battery Solutions IncStaff Answer
Jun 04, 2026 - 02:21 PM
You can try and charge a battery that's been sitting for 2 years and see what happens, especially with products like the Pulse Bolt Battery Replacement Kit, which also fits the Sonic. Small batteries like these typically only hold their charge for about 6 months. After 2 years, even if the battery accepts a charge, you shouldn't expect it to perform like a brand new one. Sulfation likely has set in, which significantly reduces the battery's capacity and overall lifespan. For optimal performance, replacing the battery with a new kit is usually the best option.
