SKU: 65098412641

Eco Energy Charge Controller PWM 3A 24V - ASC-S3-24V

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Description

Eco Energy Charge Controller PWM 3A 24V - ASC-S3-24VThe Eco Energy S3 Solar Charge Controller is a compact, high performance PWM controller designed for small 24V off grid solar systems. Rated for 3 amps at 24 volts, it features 3 stage PWM charging with float mode and an extremely low 0. 6 mA battery consumption. Fully encapsulated in epoxy potting and 100% solid state, it withstands harsh environmental conditions while providing reliable, maintenance free operation. With temperature compensation and

The Eco Energy S3 Solar Charge Controller is a compact, high-performance PWM controller designed for small 24V off-grid solar systems. Rated for 3 amps at 24 volts, it features 3-stage PWM charging with float mode and an extremely low 0.6 mA battery consumption. Fully encapsulated in epoxy potting and 100% solid state, it withstands harsh environmental conditions while providing reliable, maintenance-free operation. With temperature compensation and a -40°C to +50°C operating range, it is ideal for maintaining 24V battery banks in RVs, boats, cabins, gates, commercial signage, and other remote off-grid applications. Designed and built in North America.


Key Features & Benefits

3-Stage PWM Charging with Float Mode: Maximizes battery efficiency and longevity through intelligent bulk, absorption, and float charging stages, ensuring optimal charge without overcharging.

Ultra-Low 0.6 mA Battery Consumption: Consumes minimal power during operation, preserving battery capacity for your loads and extending system runtime.

Temperature Compensation: Automatically adjusts charge voltages based on ambient temperature, protecting batteries from undercharging in cold weather and overcharging in heat.

Fully Encapsulated in Epoxy Potting: Completely sealed to protect against moisture, dust, vibration, and corrosion, ensuring reliable operation in harsh outdoor environments.

Extreme Temperature Range: Operates reliably from -40°C to +50°C (-40°F to +120°F), suitable for year-round use in any climate.

100% Solid State Design: No moving parts or mechanical relays to wear out, ensuring silent, maintenance-free operation.

Lithium Battery Compatible (Custom Model): Available with custom programming for lithium battery charging profiles (contact for quote).

Eco-Friendly Manufacturing: Built using solar power, reflecting a commitment to sustainable production.

5-Year Warranty: Backed by a 5-year warranty for long-term peace of mind.

Designed and Built in North America: Engineered and manufactured to high quality standards with local support.


Technical Specifications

Specification Detail
Manufacturer Eco Energy
Model ASC-S3-24V
Nominal Battery Voltage 24 VDC
Maximum Charging Current 3 Amps
Charging Stages 3-Stage PWM (Bulk, Absorption, Float)
Battery Consumption 0.6 mA (typical)
Operating Temperature Range -40°C to +50°C (-40°F to +120°F)
Temperature Compensation Automatic
Design 100% solid state
Construction Fully encapsulated in epoxy potting
Battery Types Any size 24V batteries; lithium compatible (custom model)
Warranty 5 years

Mechanical Specifications

Specification Detail
Case Material Epoxy-potted sealed enclosure

Custom Options (Contact for Quote)

Option Description
Lithium Battery Programming Custom charging profile for lithium batteries
Custom Voltage Setpoints Adjust bulk and float voltages for specialized battery types
Extended Wire Lead Lengths Pre-attached wires longer than standard length

Product Documents

Installation Guide / Datasheet: Download PDF

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 65098412641

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4.4 ★★★★★
Based on 5 reviews
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H
Verified Purchase
Hudson
Lake Worth, US
★★★★★ 1
Good interface but unwearable watch band
Color: Black
This review will be divided into 3 sections: looks, usability, and comfort. LOOKS I guess there's not much to say as style is very individual. I think this watch looks good for what you pay for it. USABILITY What I liked about this watch is that I could use it right out of the box. I have had basic Timex digital watches before (never this exact interface), and I was able to quickly figure it out. A quick glance at the manual to make sure I wasn't unaware of any features and I had 100% grasp of all the watch's features. The Timex interface puts many others to shame with its user-friendliness. On this model Timex has added a 'guide' on the display that tells you which button will do what-- increase number, decrease number, etc. This is cool. If you're even remotely handy with interfaces, once you learn this one, you'll know it backwards and forwards, and even if you forget, there's the in-display guide. The functions are standard for a Timex digital-- time and date, stopwatch with lap timing, countdown timer, and alarm. There is a 2nd time zone but no dedicated mode for it. You access it by holding the 'start' button when in the time mode. I like this feature as I occasionally need to know when to call people in 1 particular time zone. But, for example, if you are often switching back and forth between 2 time zones, you will have to reset the time to have the watch display the correct time at all times. And if you need more than 2 time zones, sorry, out of luck. Stopwatch (chrono) is good. Don't use the lap counter much but it seems to work well. Some have complained that the 'start' and 'stop' should be on the same button. Overall, it is a very uncluttered and usable interface. At first I thought it was very inaccurate at timekeeping, but it must have gotten accidentally reset because over the few months since I set it, it's only a couple seconds off from time.gov. very good timekeeping. It seems very water resistant. I have taken it swimming, surfing, and it held up fine. I haven't thoroughly tested its shock resistance but it has done some hiking and climbing where it got banged around a bit and it still works. COMFORT Unfortunately what the watch has in user interface usability, it totally lacks in comfort. The strap is a huge disaster. It is very rigid and uncomfortable. The 'waffling' or indented designs near the bezel on each side of the strap create areas where the strap digs into the wrist. with any prolonged wearing, it gets worse and worse until your wrist is begging you to take it off. The strap is just absolutely godawful. I have read reviews where G Shock owners said it was very good, well though out and comfortable. If that is the case, I shudder to imagine what a G Shock is like on the wrist. If constant pinching around sensitive areas on the side of the wrist seems like it would be the kind of thing to bother you, avoid this watch. I tried swapping it for another Timex band, which amazingly enough was uncomfortable it a DIFFERENT area! It seems Timex doesn't put much thought into their bands-- no part of the band should dig into the wrist. That's just obvious. CONCLUSION I really want to like this watch, I do. It's good-looking. It's very usable in terms of features. But the strap is terrible, so much so that the watch is unwearable. Unfortunately it took me about a week to figure this out, during which time the watch got sufficient wear so that it is no longer new, returnable condition. I am keeping it, using it as a 'beater' watch in the gym (I put my watch on the ground in the gym). If you purchase it I recommend you wear it for a good few hours while not doing anything that will scratch it, so that you can return it if need be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 5, 2014
C
Verified Purchase
Curly and natural
Omaha, US
★★★★★ 5
Best purchase ever!!!
Color: G9901: Gold band & Gold dial, Color: G9901: Gold band & Gold dial
The best fit,size, quality,weight and value for the individual in my life. You can see all the moving parts in the watch and he loved it!!! Seriously considering getting more for my kids and another color for him.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
K
Verified Purchase
Karar Abady
Whiting, US
★★★★★ 5
.
Color: G9901: Two tone band & Black dial
Very good quality and looks luxury
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 3, 2026
Y
Verified Purchase
Yoisnel Estrada Araujo
Massapequa, US
★★★★★ 5
Lo bollería a comprar
Color: G9901: Gold band & Black dial
Muy lujoso y elegantes un regalo excelente
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 11, 2026
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 4
Make sure the clasp is suitable for the environment you will be wearing it in
Color: G9901: Black band & Black dial
I don't know if I didn't look closely at the clasp pick, or if I just didn't see one, but the clasp is a bit weakly designed for everyday wear. It's come unclasped twice in the 2 weeks I've been wearing it
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Reviewed in the United States on May 1, 2026

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