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Reviews For: 2s-Energy 5-15-25 amp DC-DC battery chargers

Category: Batteries & Chargers for Amateur Radio

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Review Summary For : 2s-Energy 5-15-25 amp DC-DC battery chargers
Reviews: 1MSRP: $45-$90
Description:
2s-Energy 5-15-25 amp DC-DC charger These products are been designed from the beginning to be a simple, straightforward solution to charge LiFePO4 batteries from a DC power source. The chargers are water resistant, and can be installed where exposed to rain and weather (provided watertight wiring is used). The chargers are highly efficient so no cooling fans are required for standard operation. When power is applied, it will charge until the source is depleted or the battery being charged is full. Note that heat will be generated during normal use and the unit must be allowed adequate airflow for cooling. Because of this, the charger must not be mounted in a small compartment. Typical input amperage at nominal 12v are expected to be 1.1 to 1.2 times the output amperage. The charger should be mounted as close to the battery as practical, observing proper wire gauges if the wires are to be extended. Fuses must be installed on the input and output sides of the charger with the recommendation of no more than 5 amps more than the charger current, i.e. the 5 amp charger should have a fuse no larger than a 10 amp fuse. Return Policy: 2s Energy provides a 30 day no-hassle money back guarantee on every product we sell. If you are not satisfied, for any reason, simply contact us within 30 days of delivery and we will arrange for the return and 100% refund (minus shipping). Every 2s Energy branded product also comes with a 12-month warranty against defects (batteries are warranted separately). Products from other manufacturers are warranted by the manufacturer, but are still covered under the 30 day no hassle guarantee.
Product is in production
More Info: https://2s-energy.com/product/2s-energy-dc-dc-charger/
# last 180 days Avg. Rating last 180 days Total reviews Avg. overall rating
0015
AD0AR Rating: 2021-07-06
5 amp model works super for me! Time Owned: 0 to 3 months.
I was looking for a simple lithium ion battery charger that I could use in my car and maybe integrate into my radio go box.
The obvious and cumbersome simple choice is using a 12v RFI noisy power inverter to power a 120VAC lithium charger that is also RFI noisy. Far from ideal and inefficient.
I found a new company- 2s-Energy that is making a new product that can revolutionize charging those small and large 12v lithium ion batteries right from your car's electrical system!
2s-Energy markets a water resistant sealed module that accepts a fused 9-35vdc input that provides a constant current (CC) charging profile with a 14.5vdc output.
Yes. It is a waterproof buck boost regulator that can charge 14.5vdc lithium ion batteries. Nothing else required other than a fuse on the input and output wiring.
There are 3 different modules available to fit most scalable mobile charging needs. A 5 amp, 15 amp, and 25 amp all rated for 14.5vdc common ground output.
Presently I tested the 5 amp module on my 24AH lithium battery and I was impressed. While the product literature recommends mounting in a location that allows for adequate cooling, charging my fully discharged 24AH battery generated minimal heat and I never had any concerns about the unit getting too hot while charging at room temperature.
While the charger did generate some RFI on the HF bands, the charger and radio were within 6 inches of each other for this test.
Even with this arrangement, RFI was very minimal and using simple abatement methods, i.e. a few ferrite beads and some adequately rated 4700uf electrolytic capacitors on the input and output leads made operation of the radio a reality while actively charging!
I would not recommend charging while using the 160 meter band as there was still some hash/noise observed.
I did not observe any back flow/discharge of electricity to the charger if the charger is left in place on the battery.
The charger, when disconnected from any load has a quiescent load of about 30-40mA on the charging source.
I made all of my measurements using a 12 volt lead acid car battery in my car as the power source to charge my 24AH lithium ion battery.
Since the charging unit is self contained, waterproof, highly efficient (96%+-) and compact, it is the simplest way to add a dc-dc charger to your go kit or mobile that uses a Lithium ion battery!
All you need to add are properly rated fuses on the input and output wires and connect it up!

THUMBS UP!