Features
- Built-in Bluetooth
- Waterproof Charger
- Recovery of dead batteries
- The highest efficiency ever
- Two LEDs for status indication
In Stock
$176.60 – $298.35
Battery Management
Lead-acid batteries should be charged in three stages, which are;
- Bulk or constant-current charge
- Absorption or topping charge
- Float charge
Several hours of absorption charge are needed to fully charge the battery and prevent early failure to sulfation. The relatively high voltage during absorption does however accelerate aging due to grid corrosion on the positive plates. Adaptive Battery Management limits corrosion by reducing absorption time when possible, that is: when charging a battery that is already (nearly) fully charged.
Recovery of fully discharged batteries
Once the battery is connected, the charger immediately detects voltage and polarity. If the battery is connected incorrectly, all status-LEDs will start blinking. No sparks will occur. Most of such chargers do not charge the fully discharged batteries. Whereas, Blue Smart IP67 charger will get it done by starting with low power and when it is charged with adequate voltage, it will come to normal charging.
Models
The Blue Smart IP67 Charger is available in 12V/ 7A, 12V/ 17A, 12V/ 25A, and 24V/ 12A models.
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Blue Smart IP67 Charger | Blue Smart IP67 Charger 12/7 (1), Blue Smart IP67 Charger 12/17 (1), Blue Smart IP67 Charger 12/25 (1), Blue Smart IP67 Charger 24/12 (1) |
Manual
Manual-Blue-Power-and-Blue-Smart-IP67-Charger-EN-NL-FR-DE-IT-PT-ES-SE
Manual-Blue-Smart-IP67-Charger-120V-EN-ES
Lithium Ferrophosphate (LFP) is a flame retardant, stable, safe and proven cell chemistry that has a very good energy density around 325 Wh/L. This cell chemistry can be engineered for various applications by adjusting the ratio of elements to provide high performance characteristics. E.g. the DCS marine battery range runs 2C cells, which means our little 75Ah battery will discharge comfortably at 75Ah x 2C = 150A. The DCS 80Ah Extreme runs 10C cells which means the 80A can comfortably discharge at 80Ah x 10C = 800A but is of course limited to lower currents due the the Battery Management System.
LFP also has very good cycling durability between 2,000 ~ 12,000 cycles can be achieved depending on how well the cells are managed, and the lowest rate of capacity loss (aka greater calendar-life) compared to other lithium cell chemistries.
Battery cells are simply a bunch of resistors with the ability to store energy. A 100Ah battery pack has a different resistance characteristic compared to a 50Ah battery pack, that theoretical difference in resistance is 2:1. So if you connect a 100Ah battery in parallel to a 50Ah battery there is no way for these two batteries to equalise and therefore you can’t charge them correctly. So for example connecting a 60Ah calcium starting battery to a 120Ah AGM via a VSR (Voltage Sensing Relay) you cannot charge both batteries correctly and from that day onwards you are prematurely destroying both battery packs. Same theory applies with lithium’s it’s still a battery pack.
What’s the solution? A DC-DC charger, you now have a permanent point of isolation (meaning that both batteries are never connected to each other in parallel). The DC-DC charger takes the surplus power from battery A (engine) and chargers battery B (aux/house). This device now allows any battery capacity and or chemistry to be used.
Yes you can, but lithium’s have a different voltage curve, so you would still need to use a programmable VSR to dial them in correctly. However these devices draw a lot of power when engaged to so it’s best to run the two batteries in parallel and run a load disconnect instead of a VSR.
Lithium battery cells have a super low resistance so are very easy to charge and very efficient. This level of efficiency means you can charge them at very high C rates. For example if you look at the charge rate of a 100Ah AGM battery the recommended charging current will be around 25A, which is a 0.25C charge rate. If you consider the DCS 12V 100Ah Lithium battery it can be charged at up to 70A which is a 0.70C charge rate. This means you no longer need to consider DC-DC chargers as you can connect our batteries directly to high power charging devices such as suitable alternators, or large buck boosters. For example our popular dual 90Ah battery system for boats and 4WD vehicles, can be connected to alternators up to 160A.
Because our batteries are internally voltage regulated and because our BMS has such a high sustainable peak discharge current they will do an amazing job of equalising very quickly.
The BMS will open circuit the battery terminals to protect the cells. This means there is no longer any resistance in the system. The BMS needs a 12V signal with at least 1A of current to release and wakeup from a cell protection state. Most mains chargers with a lithium profile will do a slow recovery charge as will most solar regulators. Some chargers in the market today that are advertised as ‘lithium’ compatible still don’t have the firmware to do a slow recovery charge to release BMS’s. If you have a charger that will not wakeup the BMS, easiest way to wake it up is to connect a unregulated solar panel directly to the battery terminals, ensure all loads are disconnected before you do this. Having said that every system should have a suitable low cut off voltage to shutdown loads/accessories so that the batteries are not fully drained.
Use the following settings:
Charged voltage 14.0V
Tail current 4%
Charged detection time 1min
Peukert 1.05
Charge efficiency 98%
Current threshold 0.1A
C rates: refer to the battery pack capacity
Fully charge to 100% isolate everything from the terminals and leave for max 3 months and then cycle (fully discharge and fully charge) and leave again for 3 months etc…. Minimum 4 cycles per year to not effect the cells capacity.
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