Craftsman Fully Automatic Battery Charger and Jump Starter

Craftsman's Fully Automatic Battery Charger and Jump Starter, model CMXCESM253, is a tool that promises to simplify the often cumbersome task of maintaining vehicle batteries. From my hands-on experience, I found that this tool offers a blend of functionality and convenience, although it has its share of drawbacks.

Design and Build Quality

The first thing I noticed about this battery charger and jump starter is its substantial build. Weighing in at 12.9 pounds, it feels robust enough to withstand regular use. However, I did encounter a significant issue with the handle, which snapped off during my initial use. This flaw is a bit disconcerting, especially considering Craftsman's reputation for durable tools. Despite this, the overall construction seems solid, and the unit itself is compact enough to store easily, which is a definite plus.

Charging and Jump-Starting Performance

One of the standout features of this charger is its multi-stage charging capability, which includes a 100 cranking amp engine start, a 30A boost, and 6A and 2A charge/maintain modes. This versatility means it can handle various battery types, from small lawn tractor batteries to larger RV chassis batteries.

During my testing, the automatic feature made the charging process straightforward. The unit automatically detects the voltage and adjusts the charging mode accordingly. This is particularly useful for those who aren't familiar with the intricacies of battery maintenance. The digital display with LED indicators provides clear information about the charging status, making it easy to monitor progress.

I used the charger on a completely dead lawn tractor battery, and it started the tractor instantly. The 100 cranking amp engine start is powerful enough to jump-start most vehicles, provided the unit is plugged into a wall outlet. This brings me to an important point: the charger is not portable in the sense that it requires a wall outlet to function. This limitation might be a deal-breaker for some users looking for a truly portable jump starter.

Additional Features

The CMXCESM253 also includes a built-in battery and alternator tester, which offers additional diagnostic capabilities. This feature is a valuable addition for those who want to assess their battery's health and alternator performance. The reverse hook-up protection ensures safety by preventing damage due to incorrect connections, and the color-coded clamps make it easy to connect the charger correctly.

One feature I particularly appreciated is the float mode monitoring. This mode maintains the battery at its optimal charge level without overcharging, which is crucial for prolonging battery life. It's a set-and-forget feature that adds to the overall convenience of the tool.

Usability

The charger is user-friendly, thanks to its fully automatic operation. Once connected, it does all the work, adjusting the charging process based on the battery's condition. The digital display is intuitive, and the LED indicators are bright and easy to read. The color-coded clamps are a thoughtful touch, making the connection process foolproof.

However, the need for an additional 6-foot jump starter cable if you're charging batteries removed from a vehicle could be seen as a minor inconvenience. It's not a deal-breaker, but it's something to be aware of if you plan to use the charger for RV or other larger vehicle batteries.

Storage and Portability

Despite its weight, the charger's compact dimensions (5.0 inches in height, 12.0 inches in length, and 16.0 inches in width) make it easy to store. It fits neatly in a garage or workshop without taking up too much space. The broken handle was a disappointment, but it didn't affect the tool's functionality or ease of storage.

Conclusion

In summary, the Craftsman Fully Automatic Battery Charger and Jump Starter, model CMXCESM253, offers a range of features that make it a valuable tool for maintaining vehicle batteries. Its multi-stage charging, automatic voltage detection, and built-in diagnostic tools provide a comprehensive solution for battery maintenance.

However, the requirement to be plugged into a wall outlet and the issue with the handle's durability are notable drawbacks. If you need a portable jump starter for emergency situations away from a power source, this might not be the best choice. But if you're looking for a reliable, easy-to-use charger for home or workshop use, this tool delivers excellent performance and convenience.

Would I recommend this tool? Yes, but with reservations. For those who primarily need a charger and jump starter for home use and don't mind the need for a power outlet, the CMXCESM253 is a solid choice. Its automatic features and diagnostic capabilities make it user-friendly and effective. However, if portability is a priority, you might want to consider other options.