# TLDR Review: Greenworks 40V 4Ah Battery

*Published: 2026-06-13 | Updated: 2026-06-13 | Source: https://shopsavvy.com/reviews-tldr/greenworks-40v-4ah-battery*

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## Product: Greenworks 40V 4Ah Battery
**Brand:** GreenWorks

## Pros
- Long-lasting battery with good power output over extended use
- Reliable performance when paired with Greenworks outdoor equipment
- Durable design with only two replacements needed over 8 years
- Provides consistent, powerful performance for effective mowing
- Versatile use with other Greenworks tools like trimmers, edgers, and blowers
- Arrived in good condition and correctly matched upon delivery
- Standard initial charge required after receipt
- High quality build, offering good value for outdoor maintenance
- Design supports maintaining a strong charge for longer yard work sessions
- Suitable for users prioritizing performance and durability

## Cons
- Some users experienced issues with battery failing to hold a charge or appearing defective
- Only compatible with Greenworks chargers; non-Greenworks chargers may cause charging problems
- Inconsistencies observed with the presence of USB port feature in some models
- Occasional trouble with charging or reconditioning, sometimes necessitating returns or replacements
- Does not support charging phones or tablets via USB despite product name suggesting USB functionality
- Received batteries lacking expected features or with incorrect model issues
- Relatively high price point at over $330 may deter potential buyers
- Proper charging habits recommended for long-term battery health
- Limited information on battery's weight or dimensions, impacting portability considerations
- Perception among some users that manufacturer prioritizes profit over comprehensive features

## Bottom Line

Based on user feedback, the Greenworks BAF704 40V 4.0Ah Lithium Ion Battery is a durable and reliable option for existing Greenworks users. However, be aware of potential charging issues and model discrepancies. If versatility and long-term outdoor power are priorities, this battery is a solid choice, but consider looking into newer models or bundles with additional batteries for extended runtime. Carefully evaluate compatibility and cost before purchasing.

## Pros vs Cons at a Glance

| Pros | Cons |
|------|------|
| Long-lasting battery with good power output over extended use | Some users experienced issues with battery failing to hold a charge or appearing defective |
| Reliable performance when paired with Greenworks outdoor equipment | Only compatible with Greenworks chargers; non-Greenworks chargers may cause charging problems |
| Durable design with only two replacements needed over 8 years | Inconsistencies observed with the presence of USB port feature in some models |
| Provides consistent, powerful performance for effective mowing | Occasional trouble with charging or reconditioning, sometimes necessitating returns or replacements |
| Versatile use with other Greenworks tools like trimmers, edgers, and blowers | Does not support charging phones or tablets via USB despite product name suggesting USB functionality |
| Arrived in good condition and correctly matched upon delivery | Received batteries lacking expected features or with incorrect model issues |
| Standard initial charge required after receipt | Relatively high price point at over $330 may deter potential buyers |
| High quality build, offering good value for outdoor maintenance | Proper charging habits recommended for long-term battery health |
| Design supports maintaining a strong charge for longer yard work sessions | Limited information on battery's weight or dimensions, impacting portability considerations |
| Suitable for users prioritizing performance and durability | Perception among some users that manufacturer prioritizes profit over comprehensive features |

## Current Prices

| Retailer | Price | Availability |
|----------|-------|-------------|

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*About this review: We pulled together findings from professional and user reviews, and cross-referenced them with ShopSavvy's pricing data from thousands of retailers to give you the short version.*