This bundle focuses on restoring DeWalt 20V Max lithium-ion batteries that are no longer charging. It includes essential tools for diagnosing battery issues, performing voltage checks, and attempting common revival methods such as 'jumpstarting' or manual cell charging. This selection is for those looking to troubleshoot and potentially repair their DeWalt power tool batteries.
Curated by The Shelf Curator · Updated June 2026
Built for owners of DeWalt 20V systems facing "charger lockout" where the battery voltage has dropped too low for the standard charger to recognize. Not for those with physically damaged cells or fire-damaged casings — this shop focuses on reviving healthy but dormant lithium-ion packs.
Curator's pick: Variable DC Power Supply 30V 10A
While the jumper wire method is popular, a variable power supply is the only way to precisely control the amperage during a jump-start. It prevents the rapid heat spike that occurs when bridge-connecting two batteries of different charge levels.
⚠ Worth knowing: Successful restoration only works if the cells haven't undergone internal chemical degradation or high-cycle wear. If the battery jump-starts but won't hold a charge overnight, the internal resistance is too high and the pack must be recycled.
Battery Recycling and Hazardous Waste Disposal GuideHigh-Performance Replacement Cells for Power Tool PacksSafe Storage Solutions for High-Capacity Lithium-Ion Batteries
This is a standard 5.0 amp-hour lithium-ion battery designed for DeWalt's 20V Max power tool system. It provides extended runtime for compatible tools. This battery is suitable for professionals and DIYers who require durable and long-lasting power for various applications.
20V Max platform compatibility
5.0Ah capacity for extended use
Lithium-ion chemistry
Slide-on battery pack design
Integrated fuel gauge
In this shop: This 5.0Ah DeWalt 20V Max battery is central to the restoration theme, as it's the specific unit being diagnosed and repaired.
The DeWalt 12V/20V Max Battery Charger DCB115 is designed to quickly charge all DeWalt 12V and 20V Max lithium-ion battery packs. It features an LED indicator to communicate charge status and can be used on a workbench or mounted on a wall. This charger is for DeWalt tool users needing to power their battery fleet efficiently.
Charges 12V and 20V Max batteries
Diagnostic LED indicator
Wall mountable design
Automatic temperature control
Compact footprint
In this shop: The DCB115 charger is included to rule out charger malfunction as the cause of battery charging issues, aligning with the DeWalt 20V Max Lithium Ion Battery Restoration vibe.
The AstroAI Digital Multimeter with Ohm Volt Amp Tester is a versatile electrical testing tool. It can measure voltage, current, resistance, and continuity, making it ideal for basic electrical diagnostics. This multimeter is for hobbyists, homeowners, and tradespeople who need to take precise electrical readings.
Measures AC/DC voltage and current
Measures resistance and continuity
Backlit LCD display
Data hold function
Includes test leads
In this shop: This multimeter is crucial for the DeWalt 20V Max Lithium Ion Battery Restoration process, enabling users to accurately measure cell voltages and identify 'asleep' batteries.
These 6-gauge jumper wires with alligator clips are designed for safely transferring electrical current between components. The heavy-duty clips ensure a secure connection, and the robust gauge minimizes resistance for efficient power transfer. They are useful for automotive, marine, or general electrical work where temporary connections are needed.
6-gauge wire thickness
Insulated alligator clips
Robust copper conductors
Flexible insulation
Suitable for temporary connections
In this shop: These jumper wires are essential for the 'jumpstart' method, a key technique in DeWalt 20V Max Lithium Ion Battery Restoration to equalize voltage between battery cells.
This Security Torx Bit Set for Power Tools provides a range of specialized bits designed to open fasteners with security pins often found in power tool casings. It includes various sizes to match different security screw types. This set is for technicians and DIY enthusiasts who need to access internal components of power tools without causing damage.
Variety of security Torx sizes
Chrome vanadium steel construction
Standard 1/4-inch hex shank
Organized storage case
Tamper-resistant bit design
In this shop: A security Torx bit set is necessary for non-destructive opening of DeWalt battery casings, allowing for internal inspection and manual repairs consistent with the DeWalt 20V Max Lithium Ion Battery Restoration theme.
A Variable DC Power Supply 30V 10A is a laboratory-grade instrument that provides adjustable DC voltage and current for electronic testing and development. It features precise control over output parameters and digital displays for monitoring. This tool is for electronics hobbyists, engineers, and repair technicians requiring controlled power for delicate circuits.
Adjustable 0-30V DC output
Adjustable 0-10A current limit
Digital voltage and current display
Overload protection
Fine and coarse adjustment knobs
In this shop: This professional-grade variable DC power supply is vital for sophisticated DeWalt 20V Max Lithium Ion Battery Restoration techniques, allowing for precise manual charging of individual deep-discharged cells.
