Victron EnergyBlue Smart IP67 Smart Marine Battery Charger 12V 13A, Float & Trickle Charger and Desulfator for Boat, ATV, RV, Lithium and Deep Cycle Batteries

Love this product.I use it to charge my RV trailer batteries after each rental. Peace of mind knowing the amount of Ah refilled

Works just as advertised.

Used to charge my RV battery.

Product was as described, arrived in new condition(as expected)Easy to install and set up. Once settings made in set up, works flawless

Installed it on my boat and set up the app. Works fine at charging my 65 amp lipo battery. Competitively priced so it’s not breaking the bank. It’s definitely built tough…..

Victron does a great job and this product is not an exception. It does well in charging and controlling the current to maintain my batteries.One feature I would like is to be able to stop outputting to the battery manually using the phone app.

I bought this for a cargo trailer project. It charges my 32-Ah battery quickly and indicates the relative level of charge though its flashing LED.

This review is for the "12/13A" version. Before using it for the first time to charge a 32Ah AGM battery I installed the VictronConnect Android app on my phone; and then I used the app to upgrade the charger firmware and change one of the settings. The maximum current was changed from 13 to 4 amps; the voltage settings were left on "NORMAL" which is fixed at 14.4 volts for absorption, 13.8 volts for float, and 13.2 volts for storage. I used a high quality Fluke 87V multi-meter to check these voltage and current specs. The current limit was dead on: the meter slowly cycled between 3.999 and 4.000 amps. The bulk phase performed as expected with the current limited to 4 amps and the voltage slowly increasing to the absorption level. From the start of the absorption phase the voltage slowly increased from 14.39 to 14.47 (14.45 average) over the course of 109 minutes; unfortunately after 109 minutes the absorption voltage started going crazy -- it continuously cycled from 14.47 down to 14.14 and back up to 14.47 repeating this cycle approximately every 5 to 10 seconds. It is correct that the average voltage of 14.38 as calculated my meter was close to the correct voltage at the start of the cycling; but unfortunately the average started decreasing. At the end of the absorption phase the average had decreased to 14.32 cycling continuously between 4.47 and 4.20. I would not expect this sort of weird voltage regulation on a charger that costs more than $100, so I subtracted two stars for this. The float voltage had a similar problem of being unacceptably unstable cycling up and down; since float is a long term thing I had my meter check the minimum, maximum and average over two hours: 13.77 minimum, 13.88 maximum, and 13.86 average. The fact that the float voltage was actually one tenth of a volt higher than the spec caused me to subtract another two stars from the rating. I did not measure the "storage" voltage because I ran out of stars, LOL.