25A -24V Automatic Multi-Stage Mains Battery Charger designed to enable safe and efficient unattended charging of a 24V battery bank from a mains power source (220-240V AC).
Advanced 7 stage charging process delivers faster and efficient charging, whilst eliminating the risk of voltage fluctuations.
This unit is able to charge either a single 24V battery, or several 24V batteries connected in parallel (batteries must be the same type, capacity and age). This mains battery charger is compatible with Lead Acid batteries, including AGM, Gel and Wet cell batteries.
Seven stage automatic charging
1) Desulphation: The desulphation stage may break down sulphation that occurs in batteries that have been left flat for extended periods of time, returning them back to full charge. Sulphation occurs when lead-sulphate hardens and clogs up the battery cells.
2) Soft-Start: A preliminary charge process that gently introduces power to the battery. This protects the battery and increases battery life.
3) Bulk (Constant Current): Bulk mode charges the battery at the maximum rate (constant current) putting a large amount of power into the battery in a short amount of time. This stage will charge the battery to approximately 80%, until the voltage reaches 14.4 volts for 12V battery or 28.8volts for 24V charger.
4) Absorption (Constant Voltage): The charge rate slows down so the battery can absorb more power and reach 100% charge. The voltage remains at a constant 14.4 volts for 12V charger or 28.8 volts for 24V charge while the current is gradually reduced until no more power can be added without over-charging the battery.
5) Battery Test: An automatically battery test is conducted immediately after the absorption stage. The test monitors the voltage for 90 seconds to determine if the charge was successful.
6) Recondition: The battery reconditioning function is initiated automatically if the battery fails the battery test (stage 5). Failing the battery test indicates that the absorption stage was unable to fully charge the battery. The recondition mode will then begin to introduce a low constant current for a period of 4 hours. Then the charger will go into the float charging mode. This recondition stage can recover batteries from a deeply discharged state increasing performance and battery life.
7) Float: The float stage maintains the battery at 100% charge without overcharging or damaging the battery. This means the charger can be left connected to the battery indefinitely.
PRODUCT CODE: CH2425
This is an excellent charger, despite it having no brand and being quite a cheap price, I must admit I'm really impressed with it. It's very solid, you could derail a train with it. It's quite large and heavy. But it can throw 700 watts into your batteries, and it does. It has a cooling fan that is quiet and placid. It doesn't get hot anyway, just a bit warm as you'd expect. It can charge two banks separately which is quite cool. I really like the fact that when you take the mains AC power away, nothing seems to flow back into the charger and slowly drain down the batteries like a lot of cheap chargers do. Which is extremely annoying as it means you can't keep it connected. But this one (Like Victron chargers) doesn't do that, you can leave it hooked up and as far as I can see there is no drain-back. Big yay for that. The interface looks complex but actually is quite simple and it's nice that it actually tells you what it's doing, unlike other ones that just have an LED that says "charging". Also it'll run on a much wider voltage range than the 220-240vac that Sunshine Solar specify. Overall yes it's actually a really nicely put together charger, I honestly can't think of any way to fault it. Perhaps it would be nice if they did a bigger one.
Submitted by: Miles on 08/07/2021 21:15:08
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