I find the little 2-Ah batteries don't power this saw very long. What are folks using with this? 4Ah? 6 or 8?

Hi! All Bosch PTNA Tools are compatible with all Bosch PTNA lithium-ion chargers and batteries for as long as they have the same voltage (12V, 18V, or 36V). Using a battery with a higher Ah, 4.0 and up will provide a higher runtime for the tool. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

How many watts does the motor need

You must mean amps. Use the designated amps (battery) the higher the amps the longer it will run.

The country of origin of the GSA18V-083B is in China. Robert Bosch Tool Corporation utilizes a global manufacturing strategy, which incorporates a global network of suppliers with our worldwide manufacturing locations in regions such as Asia, Europe, and the United States. Our manufacturing facilities around the globe are all owned and operated by the Bosch Group and maintain the highest quality standards. You can be assured that whatever country your Bosch product was made in, it will be made with the quality you would expect from Bosch. For further assistance, contact us at 1-877-BOSCH99 (1-877-267-2499) from Mon-Fri 7A-7P CST.

Hi if you compare this one with CRS180b, witch is the best one? or witch are the differences? thks

Thanks for your question. The GSA18V-083B is more compact and lightweight than the CRS180B weighing 4.4 lbs, 15-3/4" in length with 0.83 stroke length. The CRS180B weighs 6.3 lbs, 17.7" in length and 1.125 stroke length. If you have further questions please feel free to contact our Product Specialists at 1-877-BOSCH-99 (1-877-267-2499)

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Description

⚡ Cut smarter, not harder — power and precision in your hands!

COMPACT PRECISION - Short 15.75" length fits tight, hard-to-reach spots
SPEED MEETS CONTROL - Variable-speed trigger with up to 3,050 SPM for tailored cutting
WORKDAY ILLUMINATOR - Integrated LED light brightens your cut line for flawless accuracy
TOOL FREE BLADE SWAP - Change blades in seconds without extra tools—stay in the zone
FEATHERWEIGHT POWERHOUSE - Only 4.4 lbs for effortless overhead and extended use

The BoschGSA18V-083B is a lightweight, compact 18V cordless reciprocating saw featuring a powerful brushless motor, a 0.83-inch stroke, and up to 3,050 strokes per minute. Designed for professionals tackling wood and metal, it offers a variable-speed trigger, toolless blade changes, and an integrated LED light for enhanced visibility. Weighing just 4.4 lbs and measuring 15.75 inches long, it excels in tight spaces and overhead work, backed by Bosch’s 5-year limited warranty.

Specifications

Brand	Bosch
Color	Multicolor
Blade Material	High Speed Steel
Surface Recommendation	Wood
Power Source	Battery Powered
Special Feature	Brushless
Included Components	(2) 6-Inch Bi-Metal Reciprocating Saw Blades
Product Dimensions	15.75"L x 3.15"W x 8.1"H
Warranty Type	limited warranty
Item Weight	4.4 Pounds
Blade Length	4 Inches
Number of Teeth	18
Number of Batteries	1 Lithium Ion batteries required.
Blade Shape	Rectangular
Global Trade Identification Number	00000346486728
Handle Material	Plastic
UPC	000346486728
Manufacturer	Bosch
Part Number	GSA18V-083B
Item Weight	4.4 pounds
Item model number	GSA18V-083B
Batteries	1 Lithium Ion batteries required.
Is Discontinued By Manufacturer	No
Style	Bare Tool
Material	Other
Thickness	1 Inches
Item Package Quantity	1
Measurement System	Metric
Special Features	Brushless
Batteries Included?	No
Batteries Required?	Yes
Battery Capacity	4 Milliamp Hours
Warranty Description	Bosch 18V cordless power tools are covered by a five year limited warranty. For details, visit https://rb-pt.io/PowerToolWarranty or call 1-877-BOSCH99

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