Product details

The specialist for difficult tasks! This battery-to-battery charger allows to charge an additional battery with optimum characteristics, while ensuring that the primary battery (eg starter battery) is not discharged unintentionally. Easy to install: You can install the device between the existing primary battery and the secondary battery. Just another cable on the negative side has to be installed additionally. Suitable for the following battery types: sealed lead acid (maintenance free), open lead acid, gel, AGM. The charger is fully automatic: Once the voltage of the primary battery is more than 13 / 25 volts, the charge of the secondary battery will start. A remote control is available as an optional accessory. It shows input and output voltage, load power, battery and housing temperature, settings of the device, the current charge level, etc.
Features and functions:
  • IUoUo charging characteristics (4-step)
  • isolation of battery banks
  • process-driven charge
  • automatic activation
  • 2 temperature sensors including (art. 32489)
  • built-in status indicators (LEDs)
  • overheating protection
  • battery over-voltage protection
  • low battery voltage warning
  • starter battery discharge protection
  • optional remote control


en-flag Brochure
PDF, 2,50 MB
multi-flag Manual
PDF, 4,23 MB

What other SVB customers have to say

100% real reviews

4 customer reviews

4.8 (out of 4 ratings)
3 Stars
2 Stars
1 Stars
Dr. Tobias D.
by Dr. Tobias D. Flag of Germany 8/27/2019 Verified purchase
sehr gut
Very good load. I used 2 in parallel to get 43 A for my battery bank. Since they are absolutely waterproof, I could install them very deep in the rear. I will lead the LEDs into the sheet via passive light guides. So I can see the status without having to open anything.
Christian S.
by Christian S. Flag of Germany 6/15/2016
Charge battery to battery! Super easy installation and very quiet!
by Anonymous 9/26/2015 Verified purchase
Product corresponds to the specification in the catalog! All good!

Customers ask customers

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General question

User image of Valerij K.
Valerij K. asked
on Jan 23, 2022
Flag of English Hi.Wich fast charger you recommend for torqeedo battery 915Wh 29.6V/31Ah And how much delivery to London? Thank you.
User image of W P.
W P. answered
on Jan 24, 2022
Hello Valerij, TORQUEEDO point out the following on their website/ServiceCentre/FAQs: "For safety reasons, only a device inspected and approved by Torqeedo may be used, as otherwise damage to the battery or to the charger may result. This would void all warranty coverage." /// The instructions offer 3 charging options: 1) Charging the battery using the AC power supply unit AC IN / OUT 24 V, 4,16 A, 100W => Charging time (power supply unit) 10,5 h /// 2) Charging the battery from the onboard power supply, using a DC power supply in the range of 9.5 V to 50 V. The DC power supply must be able to provide at least 4 A. => Use the TORQUEEDO 12/24 V charging cable #32976#. /// 3) Using a solar panel; the battery can also be charged using a solar panel from the Torqeedo accessories range or using solar panels from other manufacturers. Batteries from 2015 or later (serial number starts with 15 or higher) provide this option. The panel’s open-circuit voltage should be between 15 and 50 V, and power up to 150 W peak is suitable. /// The 915 Wh TORQUEEDO battery includes BMS/charging technology. If we look at the limits mentioned for solar charging, we can assume that the BMS can handle max. 150 W charging power. For example, if you use this 12/12-30 B2B, it would provide 12 V x 30 A = 360 W, too much for the 915 Wh battery. My tip: Check the fuse protection of your cigarette lighter socket. If it is fused at 12 A, you can use the DC charging cable #32976# to fully operate within the limits of the BMS. Charging may be a little faster, but it certainly won't be furious!