DeWalt Battery Charger Compatibility Guide by Model
Avoid mismatches, protect your batteries, and ensure safe charging by using the correct DeWalt charger for each platform—12V MAX, 18V/20V MAX, FlexVolt, PowerStack, and more. This model‑by‑model guide helps you pick the right charger every time.
Charger Series Overview
DeWalt’s charger lineup is organized by voltage and platform: the 12V MAX series (models DCB101/DCB102/DCB107) supports 12V NiCd, NiMH and Li‑Ion packs up to 4Ah, while the 20V MAX chargers (such as DCB113/DCB115) deliver full‑speed charging to 20V batteries but will also accept 12V MAX packs at reduced current. FlexVolt-compatible chargers (DCB118/DCB119) detect and apply the correct profile to both 20V and 60V FlexVolt packs. For the new PowerStack cells, the dedicated DCB118‑PS charger uses enhanced thermal controls and ultra‑fast charge algorithms, and legacy chargers cannot service these packs. Multi‑port stations like the DCB115X intelligently distribute charge to any 12V, 20V or FlexVolt battery inserted, simplifying fleet rotation without manual selection.
12V MAX Chargers (DCB10x Series)
- Models: DCB101, DCB102, DCB107
- Batteries Supported: 12V MAX NiCd, NiMH, Li‑Ion (1.5–4 Ah)
- Notes: Ideal for compact drill batteries and light‑duty tools.
18V/20V MAX Chargers (DCB11x Series)
- Models: DCB110, DCB115, DCB116, DCB112
- Batteries Supported: 18V & 20V MAX Li‑Ion (2–5Ah)
- Notes: Standard chargers vs. rapid‑charge variants for heavy‑use drill batteries.
FlexVolt & Multi‑Voltage Chargers (DCB2xx Series)
- Models: DCB210, DCB215 (2‑bank); DCB224, DCB240 (FlexVolt)
- Batteries Supported: 20V MAX, 60V FlexVolt, 120V FlexVolt
- Notes: Dual‑port models let you charge two packs simultaneously; FlexVolt models auto‑detect voltage.
Compatibility Matrix
| Charger Model | Voltage / Chemistry | Platforms Supported | Notes |
| DCB101/102/107 | 12V MAX | NiCd, NiMH, Li‑Ion | Good for small drill batteries and accessories. |
| DCB110 | 18V MAX (standard rate) | 18V & 20V MAX Li‑Ion | Base‑level charge rate. |
| DCB115 | 18V MAX (fast rate) | 18V & 20V MAX Li‑Ion | Charges 4 Ah pack ~35 min. |
| DCB116 | 18V MAX (fast + maintenance) | 18V & 20V MAX Li‑Ion | Adds maintenance trickle mode. |
| DCB112 | Auto‑detect (12V / 18V / 20V) | All above | One charger for multiple platforms. |
| DCB210/215 | Dual‑bank 20V MAX | All 20V MAX packs | Charge two drill batteries at once. |
| DCB224/240 | FlexVolt multi‑voltage | 20V MAX, 60V/120V FlexVolt | Backwards compatible with 20 V packs. |
Key Compatibility Considerations
When matching a DeWalt charger to your battery, always verify voltage, chemistry, and capacity: 12V MAX chargers suit NiCd, NiMH, and 12V Li‑Ion packs up to 4Ah, while only 20V MAX chargers deliver full‑rate charging to 20V batteries (though they will trickle‑charge 12V packs). FlexVolt chargers auto‑detect and apply the correct 20V or 60V profile, and PowerStack packs demand the dedicated DCB118‑PS. Never force FlexVolt or PowerStack cells into legacy units—doing so risks under‑charging, over‑heating, or cell damage and voids warranties—and use a multi‑port station only if it lists support for your specific battery type.
Voltage & Chemistry
- Never charge a 12V pack on an 18V charger or vice versa.
- Mismatches can damage the BMS or the cells themselves.
Charge Rate vs. Battery Life
- Fast‑charge (1 C) modes shorten tool downtime but can slightly reduce cycle life compared to standard (0.5 C) charging.
LED Indicators & BMS Handshake
- A solid red → green transition confirms proper handshake.
Rapid red/green blinking signals an incompatible battery or a handshake error; remove and swap to the correct charger.
Selecting the Right Charger
When selecting a DeWalt charger, begin by matching its voltage and platform to your battery: use 12V MAX models for 12V packs, 20V MAX chargers for 20V batteries (to get full‑rate charging), FlexVolt‑compatible units for FlexVolt packs (which auto‑detect 20V or 60V modes), and the dedicated PowerStack charger for PowerStack cells. If you manage a mixed fleet, a multi‑port station can simplify rotation—but always verify it explicitly supports each battery type to avoid undercharging, overheating, or cell damage.
1. Single‑Port vs. Multi‑Port
- Single‑port chargers save space.
- Dual‑bank models (DCB210/215) double throughput, ideal for busy workshops.
2. Portability & Mounting
- Bench‑top vs. wall‑mount kits.
- Consider a rolling tool cart with integrated charging station.
3. Budget vs. Performance
- OEM chargers guarantee compatibility.
- Certified aftermarket units can offer savings—but verify UL/CE listings and full specs before purchasing.
Troubleshooting Incompatible Charger Issues
When a battery won’t charge or flashes error codes in a DeWalt charger, it’s almost always a platform mismatch. First, confirm the charger’s model (12V MAX, 20V MAX, FlexVolt or PowerStack) matches your pack’s voltage and chemistry. Next, clean both charger plates and battery terminals with isopropyl alcohol to remove debris or oxidation. If the LED still blinks red or green, consult DeWalt’s error‑code guide: No charge often means voltage mismatch, rapid flashing signals a pack fault, and paused charging indicates out‑of‑range temperature. Always use the correct OEM charger—never force a pack into the wrong slot—and if the issue persists, test the battery on a known‑good, compatible charger to isolate whether the fault lies with the charger or the battery. Replacing non‑matched or faulty units ensures safe, efficient charging and preserves your warranty.
- No LED When Battery Inserted
→ Check model labeling, clean contacts, verify outlet power.
- Error‑Flash Patterns
→ Rapid red/green blinks indicate BMS handshake failure. Swap to the correct charger series.
- Slow or Incomplete Charging
→ Ensure charger’s amp‑hour rating matches battery capacity; a low‑rate charger takes much longer to top off a large battery.
Maintenance Tips
To keep your DeWalt charger and batteries in peak condition, clean vents and contact plates monthly with compressed air and a lint‑free cloth dampened in isopropyl alcohol, then let all surfaces dry fully. Every three months, deoxidize terminals with a soft brush and contact cleaner, inspect the power cord for cuts or frays, and test no‑load output voltage with a multimeter to verify correct float voltage. Store the charger and packs in a cool (10–40°C), dry location, avoid over‑trickle charging by removing batteries once green, and log occasional performance checks—this simple routine prevents corrosion, maintains proper heat dissipation, and extends both charger and battery life.
- Keep Vents & Contacts Clean
Blow out debris monthly and wipe terminals with isopropyl alcohol.
- Store in Temperature‑Controlled Areas
Maintain ambient 10°C–40°C to avoid BMS lock‑outs.
- Test Periodically
Every 3–6 months, charge a known‑good battery and verify a full LED charge cycle (red → flashing green → solid green).
FAQ
1. Can I charge FlexVolt batteries on a 20V MAX charger?
No—only FlexVolt‑rated chargers (DCB224/240) handle the 60V/120V modes safely
2. What’s the difference between DCB110 and DCB115?
DCB115 offers a faster charge rate (≈ 35 min for 4 Ah) versus DCB110’s standard rate (≈ 60 min).
3. How do I identify my charger model?
Check the label on the side or bottom—look for “DCBxxx” numbering.
Following this guide will help you avoid drill battery mishaps, protect your batteries and chargers, and maintain peak performance across your DeWalt power tool lineup. For genuine chargers, mounting kits, and detailed specs, visit XNJTG.