Sun Joe iON16LM

Sun Joe iON16LM 40V Cordless Lawn Mower Review

Here we review the Sun Joe iON16LM cordless electric lawn mower. There is a lot to like about this mower, but there is also one glaring negative that just might be a deal breaker for some people. Read on to find out if this mower is right for you.

Review Summary

Below we will break down our review of this lawn mower into three important categories…Features, Quality, and Value. This mower did not make our top mowers list. To see our favorite options for electric mowers visit our article The Best Electric Lawn Mowers.

Sun Joe 40V Cordless Mower
Sun Joe iON16LM 40V Cordless Lawn Mower
  • No pull cords, gas, oil, tune-ups, carbon emissions or tangled extension cords
  • Compact design ideal for small to mid-sized lawns
  • 6-position height adjustment lever tailors grass cutting height from 1.18 to 3.15 Inch
View Current Price View All Sun Joe Tools
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Take Away

This mower is a great purchase for someone with a small yard and who wants to bag their clippings. It will keep your yard clean and well cut. With the low price, this might be the perfect mower for you.

If you have a large yard, be ready to take more trips across the yard due to the 15 inch blade, as well as emptying the grass bag more frequently. If this is you, think about upgrading to the Sun Joe iON100V.


Lack of mulching and side discharge may be a deal breaker for some, but the light weight body can really come in handy.


The light mower body is nice, but the wheels add a little to be desired. Considering it has a 2 year warranty, not too bad.


While lacking in a couple of features, what you do get with this mower is well worth the money. Battery and charger included.

Pros and Cons


  • Affordable Price 
  • Brushless Motor
  • Light Weight: Under 35 lbs
  • Battery and Charger Included


  • No Mulching or Side Discharge
  • Only 15″ Cutting Blade

Features of the Sun Joe iON16LM

Sun Joe iON16LM

Product Stats

  • Weight: Under 35lbs
  • Dimensions: 48.4 x 17.7 x 42.9 in.
  • Deck Size: 16 in.
  • Cutting Blade: 15 in.
  • Rear Wheel Size: 8 in.
  • Blade Heights: 6-position | 1.8 in. to 3.15 in.
  • Self-Propelled: No
  • Push Button Start: Yes
  • Vertical Storage: No
  • Warranty Length: 2-year

Key Features

All Terrain Wheels

On the mower, both the front and rear wheels are rugged and all-terrain in design. This way, the mower not only can manage to cut over most common surfaces you will experience while cutting, but the design can help make it easier to maneuver in tight spaces.

The wheels are lacking a little in the quality department. However, I suppose that is one area where they have cut costs to allow the price to be so low.

6-Position Height Adjustment

Although this mower features fewer height adjustments when compared to other similar mowers in its class, the six positions offered are more than enough in this case.

You are able to go from 1.8 in. to 3.15 in. It is enough to manage a small to medium-sized lawn. Adjusting is made easier thanks to the adjustment lever.

16″ Wide Cutting Deck

As for the actual cutting deck, the mower features one that is only 16 inches in width. The cutting blade itself is only 15 inches in width. This is not as wide as many other mowers on the market. This is another area that helps cut the cost, but to some, this feature might be a deal breaker.

Brushless Motor

Compared to the use of brushed motors, brushless motors are known to have a much higher power output. With the use of a brushless motor in this particular mower, it helps increase battery efficiency. This design also assists in decreasing the noise from the mower.

Additionally, the 600 W brushless motor improves the overall performance as well as extending the life of the motor itself.

Also inside is a thermal cut-out switch. This switch keeps the mower safe from experiencing thermal overload, giving it greater durability in the long run.


This mower is said to be manually-powered. Although self-propelled mowers tend to be easier to move, this mower does still manage to offer ideal maneuverability due to the light weight.

This mower is designed wonderfully light. Such a lightweight design can help you guide it around your lawn far easier without feeling fatigued by the work. The fact that it has an ergonomic grip makes it even simpler to handle.

Grass Bag

The grass in this mower is all dispelled toward the back. As long as it is attached, it is expelled into the 9.25 gallon grass bag. This is rather small, and we would have liked to see a little more grass storage.

This bag is easily detached when it needs emptying, and it even features a way to monitor its contents with the grass indicator window.

Power Supply

  • Battery Stats: 40V | 4A
  • Time to Fully Charge: 30 minutes to 3 hours
  • Mowing Time Per Charge: 40 minutes

This push mower utilizes a rechargeable lithium ion EcoSharp battery that provides you with 40 minutes of run time. Unlike some mowers with lead-acid batteries, a lithium ion battery generally charges at a faster rate. The speed of it will depend on how depleted the battery is when you charge it.

To make sure that you don’t get caught off-guard while mowing, there is an easy-to-read battery-powered level indicator.  You’ll always know when it’s time to stop and remove the battery for charging.

Quality of the Sun Joe iON16LM

iON16LM Features

Mower Quality

The deck of the mower is fabricated and made from ABS plastic. It is intended to be rust-resistant, which helps further the life of the mower.

It’s designed lightweight as well, which adds to its easy maneuverability. To make things simpler, the handles can even fold for simple storage, especially in tight places. On the topic of the handles, they are built ergonomic, making the mower even more user-friendly. They’re also padded with soft foam to be easier on the hands.

As for the blade, it is made from a decent steel. This grants it stronger cutting power as well as optimal precision.

About Sun Joe

First established in 2004, Sun Joe is a New Jersey-based company with a focus on outdoor equipment; in particular, garden and lawn tools. They strive for innovation, using cutting-edge technology to continually develop their product line.

The company started out with the Snow Joe (an electric snow shovel), and now features an assortment of different tools from electric-powered, to manual and cordless products.


By purchasing this mower, you receive a 2-year warranty. This warranty is good for use on normal residential properties, and it is intended to protect against defects in workmanship or material. The warranty also explains that it will work on repairing or replacing any parts that are defective.

This 2-year warranty applies strictly to residential use. If you decide to use the mower for business or commercial purposes, then the warranty goes down to 90 days from the date of purchase.

Value of the Sun Joe iON16LM

iON16LM Features

What Comes with the Sun Joe iON16LM

When you purchase this mower, you get more than the machine. It also includes one 40V 4Ah battery and charger. ​

The mower is designed with a single blade, and it comes with one bag for grass collection.

Replacement Parts

The mower does not come with any additional batteries, chargers, or blades. Even so, it is easy enough to order replacement parts from Amazon or directly from the manufacturer. Also, if you have another similar battery from a different product from the same company, you should still be able to use it in the mower.

If you are in need of a new blade (or even a spare), Amazon offers a Replacement Blade at a very affordable price.

Value Summary

The mower seems to be on par with most others from different brands in terms of value. However, it is more budget-friendly than some. You do get a pretty good value  based on its compact size, easy recharge feature, and user-friendly features such as maneuverability and lightweight body.

In addition, you don’t have to purchase the charger or battery. These can sometimes come at an extra cost with some mowers.


Sun Joe Mower

The Sun Joe iON16LM Cordless Lawn Mower is a rather powerful tool in a small, lightweight package. With a single blade, it can manage a small sized lawn pretty well, and the battery allows you to work for 40 minutes before needing to be recharged.

It is built from reliable material that holds up well over time. The all-terrain wheels are just ok, but for the price you shouldn’t expect an amazing set of wheels. Being lightweight, it offers ideal maneuverability, especially in tight spaces.

At an affordable cost, this cordless, battery-powered lawn mower provides you with just enough to keep the yard at your home well-maintained.

Sun Joe iON16LM 40V Cordless Lawn Mower
  • No pull cords, gas, oil, tune-ups, carbon emissions or tangled extension cords
  • Compact design ideal for small to mid-sized lawns
  • 6-position height adjustment lever tailors grass cutting height from 1.18 to 3.15 Inch
View Current Price View All Sun Joe Tools
We earn a commission if you make a purchase, at no additional cost to you.

If the Sun Joe iON16LM is not for you, be sure to check out our Recommended Mowers page for our top picks! We offer our thoughts on all of the top lawn tools on the market!

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