20V to 18V Battery Adapter – Worx/Kress 5-Pin to Bosch PBA
20V to 18V Battery Adapter – Worx/Kress 5-Pin to Bosch PBA
20V to 18V Power Tool Battery Adapter – Worx/Kress 5-Pin to Bosch PBA 18V
Stop buying duplicate batteries! This smart battery adapter lets you use your existing Worx or Kress 5-pin 20V Li-ion batteries (large footplate / Bigfoot models) directly with your Bosch PBA 18V Green Tool series. One compact converter, two battery ecosystems — maximum value from the batteries you already own.
Compatible Battery Models
Bottom of Converter (Input – Worx/Kress 5-Pin 20V Li-Ion)
- Worx: WA3593, WA3595, WA3401, Bigfoot 20V Li-Ion (green models)
- Kress: KPB2021, KCH2021, KPB2003, 20V Li-Ion
Top of Converter (Output – Bosch PBA 18V C-Type)
- Bosch PBA 18V model numbers: 1600A005B0, 1600A011T8, 1600A00DD7, 1607A350T0, 2 607 336 724
Key Features
- Cross-Brand Compatibility: Bridges Worx/Kress 5-pin 20V batteries with Bosch PBA 18V C-model power tools seamlessly
- Compact & Lightweight: Measures just 100 × 75 × 45 mm and weighs only 89 g — barely noticeable when attached
- Secure Fit: Large footplate design ensures a stable, wobble-free connection between battery and tool
- Low Voltage Safe: Operates within low-voltage range (below 75V DC / 50V AC) for everyday tool use
- No Battery or Charger Included: Pure adapter — straightforward and cost-effective
Important Notes Before You Buy
- ⚠️ Not compatible with Bosch cordless vacuum cleaners
- ⚠️ For Bosch 18V Home & Garden Series Green Tools only (NOT compatible with PSM 18 LI or ALB 18 LI)
- ⚠️ Does not support charging the Worx/Kress 5-pin 20V battery through the converter — charge your battery separately using its original charger
Specifications
| Model | Worx/Kress to Bosch C-Type |
| Input | Worx/Kress 5-Pin 20V Li-Ion (large footplate) |
| Output | Bosch PBA 18V C-Type |
| Dimensions | 100 × 75 × 45 mm |
| Net Weight | 89 g |
| Battery Included | No |
| Charger Included | No |
| Country of Origin | Made in China |
You Might Also Like
- 10-Pc Wooden Handle Nylon Bristle Brush Set – Ideal for Cleaning & Detail Work
- Precision Japanese Double-Edged Hand Saw – SK5 Steel, Fine-Toothed
- Professional Heavy-Duty Pruning Shears with Anti-Slip Handle
Learn more: OSHA on eye and face protection
Frequently Asked Questions
Q: Will this battery adapter work with all Bosch 18V tools?
A: No — this adapter is designed specifically for the Bosch PBA 18V Home & Garden Series Green Tools (C-type battery slot). It is NOT compatible with Bosch Professional/Blue tools, cordless vacuum cleaners, the PSM 18 LI, or the ALB 18 LI models. Always verify your Bosch tool's battery model number against the compatible list before purchasing.
Q: Can I charge my Worx or Kress battery through this adapter using a Bosch charger?
A: No. This converter does not support charging. You must always charge your Worx/Kress 20V Li-ion battery using its original dedicated charger. The adapter is for tool operation only.
Q: Which Worx and Kress battery models are compatible with this adapter?
A: The adapter accepts Worx 5-pin large footplate 20V Li-ion batteries including models WA3593, WA3595, and WA3401, as well as Kress 20V Li-ion batteries KPB2021, KCH2021, and KPB2003. Make sure your battery has the 5-pin large footplate (Bigfoot) configuration.
Q: Is a battery or charger included with the adapter?
A: No — only the adapter itself is included. Batteries and chargers are sold separately. This is a pure conversion adapter designed to bridge your existing Worx/Kress battery ecosystem with Bosch PBA 18V tools.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.