My4Sons Automatic Battery Charger Compatible with White Tank M4 Backpack Sprayer - Portable Power Supply Charge Maintainer - Power Adapter for Lawn

**** The My 4 Sons Battery Charger for White Tank M4 has garnered a mixed reception among its users. Several reviewers note that the charger works effectively for its intended purpose, particularly some users who needed a replacement and found it to be functional and efficient. However, a significant issue raised pertains to the charging indicator; older models of the charger reportedly do not signal when the battery is low, often staying green regardless of the actual battery charge level. This problem led to frustration for one user who lost their battery, having assumed it was charged based on the misleading indicator light. The charger itself seems to fulfill its primary role without major problems, but a critical user experience concern is the indicator's reliability, leading to potential misunderstandings about battery status. Users express a strong attachment to the sprayer itself, with one calling it a must-have over a hand pump alternative, indicating that while the charger may have weaknesses, the overall product ecosystem it supports is well-loved. Additionally, there are safety concerns voiced about the compatibility of the charger with other product models, such as the PetraTools sprayer, highlighting a potential design flaw that could risk damaging devices if non-compatible chargers are used. Ultimately, while the My 4 Sons charger has its advantages, especially for current users of the White Tank M4, the apparent lack of response from the company regarding troubleshooting and safety concerns could affect long-term customer satisfaction. **