What do you recommend so I can have the set up ready when I receive my three, most coveted, Battle Born batteries. Thank you in advance When you are looking to interconnect your lithium-ion batteries with your lead acid batteries, the only method we recommend is with a battery isolator or DC to DC charger in line between the two. The most common application of this set up is for alternator charging. As you may be familiar with, to be able to successfully charge your lithium battery house bank while driving you will have to connect it to your alternator and starting battery setup. Please keep in mind that Battle Born Batteries should not be used for cranking applications such as turning over the engine, and you will need to keep your lead acid starting battery in place. Voltage Conversion: The charger steps down the higher voltage output from the alternator to a suitable charging voltage for the auxiliary battery system. This voltage conversion ensures that the battery receives the optimal charging voltage without overcharging or damaging the cells.

For example, you can use them in vans, RVs, or boats to isolate the house batteries from the alternator and starter battery when the engine isn’t running. You can also use them to isolate two lead-acid batteries from one another to prevent one from drawing down the other. Benefits: Non-isolated chargers are typically simpler, smaller, and less expensive compared to isolated chargers. They are suitable for applications where the input and output batteries have the same voltage. While battery isolators are relatively simple devices, battery separators (sometimes called “smart battery isolators”) are more complex and perform several functions. For example, when the engine is started, the battery separator monitors the voltages of the main battery, the auxiliary battery, and the charging system voltages. When the engine is first started, the battery separator disconnects the auxiliary battery from the system and senses the charge needs of both batteries. If the overall charge needs are greater than the alternator can support, the battery separator disconnects the auxiliary battery and sends all charge current to the main battery. The higher the current rating of a battery to battery charger, the faster your leisure battery will charge. However, the current rating is limited by your battery size and type. For most lead acid batteries , manufacturers recommend a charge current which around 0.15C, or 15% of the battery’s capacity every hour. Xie, Z., et al.: Evaluation and analysis of battery technologies applied to grid-level energy storage systems based on rough set theory. Trans. Tianjin Univ. 20, 1–8 (2020)Baes, K., Kolk, M., Carlot, F., Merhaba, A., Ito, Y.: Future of batteries, 2018. [Online]. http://adlittle.com/en/insights/viewpoints/future-batteriesD If you have a very simple one-battery setup, you could probably get away with not having an isolator. However, having one is crucial if you’re in a vehicle, RV, or boat with multiple batteries. The last thing you want is to be stranded out at sea, in the desert, or on a mountain with two dead batteries, and a battery isolator will prevent this. Peak efficiency, output voltage, and output current versus operating switching frequency for the converter operating in the G2V and V2G mode. Select an appropriate charger: Once you have calculated the charging current required, you can look for a battery charger that meets your specifications. Choose a charger that can provide the desired charging current and is compatible with your battery type.

If you are storing your vehicle for longer than 30 days without use, we recommend disconnecting the negative terminal of your 12-volt battery,” says Taenaka. “This avoids depletion and potential damage to the battery, which runs the internal systems such as heating – without the need for monthly maintenance.” Disconnecting the 12-volt battery For a Battery Isolator our team recommends using the LI-BIM. This unit is preprogrammed with the correct lithium charging profile. It also duty cycles your alternator periodically and will monitor your starting battery and lithium house bank to prioritize the charge. Below is a layout of the connections you need to make with the LI-BIM to properly isolate your two battery banks.Suitable for high temperatures up to 55°C with a full rated output up to 40°C. Looking for a different rated Victron Energy battery to battery charger?