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Crusader
Executive Member
Getting started:
Since the manual is pretty useless, I thought it might be a good idea to add a spot for lessons learned through user experiences. [Link to Must Manual - slightly different, but same info]
Here's a step by step guide for once you have unboxed your inverter trolley:
1. Breaker should be up/on
2. Switch inverter on.
3. Plug in kettle cord to mains (mains switched off).
4. Plug kettle cord into trolley.
5. Switch on mains.
6. Troĺley should show it's charging.
7. Charge for at least 4 hours (from user experiences posted). For the 3KW unit this can take up to 6 hours.
8. Plug devices into trolley which you want to power.
Video walkthrough. Different branding, but same unit:
Things to know:
"... due to the lithium-ion battery cells being sourced from third-party manufacturers (such as BYD/EVE, etc.), there may be variations in the battery capacity percentage, making it impossible to determine the exact percentage of battery degradation. Future products will be equipped with lithium-ion communication to display the battery level. Additionally, please confirm if the machine has been set to the lithium-ion mode. According to our V1 technical documentation, the float charge for MODEL 12V is around 14.4V. Here is an example that can serve as a reference: 13.6V - 100% 13.3V - 90% 13.1V - 80% 12.9V - 70% 12.4V - 50% 11.8V - 25% For MODEL 24V, the actual battery voltage is obtained by multiplying the values above by 2."
*****
Anyone familiar with the Navasolar Trolley Inverters available at Takealot?
Edit: The trolleys seem to be rebranded versions of Must Energy HBP1800 SERIES inverter trolleys.
Specs seems decent:
BP1800 Series
HBP 1800 series all-in-one energy storage solution, support 1KW output for different load appliances. It's based on the original cabinet design, stacked with solar energy storage lithium battery 960wh, and built in battery protection system, fully retain the use of load power in applications of residential, school, commercial and public utility area.
1000W - Pure Sine Wave Inverter
4000+ Charge Cycle
24/7 UPS Plug & Play Use
2 x USB ports for DC Load
Features higher capacities for greater compatibility with more power-hungry devices, and the latest in USB-C Power Delivery capable of charging larger USB devices like laptops.
Includes pre-installed solar charging optimization module that functions as a maximum power point tracker (MPPT), resulting in up to 40% faster charge times.
With LiFePO4 lithium cells, known for stability and safety, monitored by a state-of-the-art battery management system that prevents overcharge, over-current, and short circuiting.
Built in Multi safety protection that include short circuit, overload and over-temperture and error code reporting
Specifications
Model: NV-BP18-1012
Inverter:
Rated power: 1000W
Output voltage waveform: Pure sine wave
Output voltage regulation: 230Vac 5%
Output frequency: 50Hz / 60Hz ( 0.2Hz)
Peak efficiency: 90%
Nominal DC input voltage: 12Vdc ( 0.3)
Standby Consumption: < 25W
PV Input:
Max solar power input: 900W
PV max charging current: 60A( 3A)
Combined charging current: 70A( 4A)
Looks like this is a standard unit that gets rebranded by other companies. Verimark also has one.
Can't seem to find any info on original manufacturer.
Since the manual is pretty useless, I thought it might be a good idea to add a spot for lessons learned through user experiences. [Link to Must Manual - slightly different, but same info]
Here's a step by step guide for once you have unboxed your inverter trolley:
1. Breaker should be up/on
2. Switch inverter on.
3. Plug in kettle cord to mains (mains switched off).
4. Plug kettle cord into trolley.
5. Switch on mains.
6. Troĺley should show it's charging.
7. Charge for at least 4 hours (from user experiences posted). For the 3KW unit this can take up to 6 hours.
8. Plug devices into trolley which you want to power.
Video walkthrough. Different branding, but same unit:
Things to know:
- The fans are quite loud and come on full blast on first powering up. Then they come on while charging for around a minute every 2-3 minutes and during high loads when running of off batteries. (>100W for 1 KW unit, > 200W for 3KW unit.) Even with low loads the fans can also come on occasionally. This seems to be roughly once an hour with the fans blowing for a minute or two.
- Once charging is done and during low loads the fans are silent and do not go on.
- For the 3KW unit the batteries seem to be fully charged when the voltage shows as 28V - 28.2V.
- The charging light will remain constantly flashing even though the batteries are fully charged and you are in bypass mode. Once load shedding hits, the light stops flashing which shows the unit is operating from the battery.
- The 3KW unit draws around 500W - 550W while charging. As it nears completion this drops to around 200W.
- You can switch the inverter off and it will still charge the batteries, and show the display while the unit is connected to mains and there is power. To completely turn the unit off you have to switch of the mains power and unplug it.
- There is a slight delay once you connect to mains power before the unit goes to bypass mode. Bypass mode means the power used to power the load comes from Eskom and not the batteries and the batteries will charge while connected to the grid.
- The unit can be used as a UPS and automatically switches over once the power goes out. This is seamless and should be fast enough so computer equipment won't shut down.
- Changing the unit to UPS mode is recommended. It decreases the switchover delay to 10ms from 20ms which would be best for IT equipment. Go to Program 2 in settings. Change from APL to UPS.
- Add surge protection plugs to the INPUT side of the inverter (plugged directly into mains). It's not advised to have any surge protection multi-plugs running on the OUTPUT side of the inverter. This could possibly damage the device.
- The unit should be grounded when in operation (i.e. connected to an earthed socket).
- The battery charge indicator is not working properly. "The early models did not set the lithium battery communication, so the power level is not accurate. Whether the battery is fully charged can be judged by the battery voltage. MODEL 12V-14.4V, MODEL 24V-28.8V"
- Roughly that means battery charge levels will be: 70%: 26.4V / 50%: 26.1V / 25%: 25.8V
"... due to the lithium-ion battery cells being sourced from third-party manufacturers (such as BYD/EVE, etc.), there may be variations in the battery capacity percentage, making it impossible to determine the exact percentage of battery degradation. Future products will be equipped with lithium-ion communication to display the battery level. Additionally, please confirm if the machine has been set to the lithium-ion mode. According to our V1 technical documentation, the float charge for MODEL 12V is around 14.4V. Here is an example that can serve as a reference: 13.6V - 100% 13.3V - 90% 13.1V - 80% 12.9V - 70% 12.4V - 50% 11.8V - 25% For MODEL 24V, the actual battery voltage is obtained by multiplying the values above by 2."
| Charge state | 12V Model (1KW) | 24V Model (3KW) |
| Float | 14.4 | 28.8 |
| 100% | 13.6 | 27.2 |
| 90% | 13.3 | 26.6 |
| 80% | 13.1 | 26.2 |
| 70% | 12.9 | 25.8 |
| 50% | 12.4 | 24.8 |
| 25% | 11.8 | 23.6 |
*****
Anyone familiar with the Navasolar Trolley Inverters available at Takealot?
Edit: The trolleys seem to be rebranded versions of Must Energy HBP1800 SERIES inverter trolleys.
Specs seems decent:
BP1800 Series
HBP 1800 series all-in-one energy storage solution, support 1KW output for different load appliances. It's based on the original cabinet design, stacked with solar energy storage lithium battery 960wh, and built in battery protection system, fully retain the use of load power in applications of residential, school, commercial and public utility area.
1000W - Pure Sine Wave Inverter
4000+ Charge Cycle
24/7 UPS Plug & Play Use
2 x USB ports for DC Load
Features higher capacities for greater compatibility with more power-hungry devices, and the latest in USB-C Power Delivery capable of charging larger USB devices like laptops.
Includes pre-installed solar charging optimization module that functions as a maximum power point tracker (MPPT), resulting in up to 40% faster charge times.
With LiFePO4 lithium cells, known for stability and safety, monitored by a state-of-the-art battery management system that prevents overcharge, over-current, and short circuiting.
Built in Multi safety protection that include short circuit, overload and over-temperture and error code reporting
Specifications
Model: NV-BP18-1012
Inverter:
Rated power: 1000W
Output voltage waveform: Pure sine wave
Output voltage regulation: 230Vac 5%
Output frequency: 50Hz / 60Hz ( 0.2Hz)
Peak efficiency: 90%
Nominal DC input voltage: 12Vdc ( 0.3)
Standby Consumption: < 25W
PV Input:
Max solar power input: 900W
PV max charging current: 60A( 3A)
Combined charging current: 70A( 4A)
Can't seem to find any info on original manufacturer.
Last edited:
F me,
