Mobi 12V 20A DC to DC Battery Charger Dual Battery System MPPT
In dual battery setup, a DC DC charger allows you to charge an auxiliary battery from the alternator whilst driving. With the DC DC charger, the main battery remains unaffected and always ready to start the car. And the DC DC charger can activate lower input voltage operation to suit vehicles with smart alternators.This 12V DC DC battery charger can utilize a solar panel or a starting battery linked to the alternator, while giving the priority to a solar input to place less load on the alternator. The DC to DC charger is suitable for LiFePO4 and lead acid: AGM, gel & calcium batteries, and allows you to re-select the battery during charging. With the memory function of this battery to battery charger, you dont need to re-select the same battery type every time. And 6-stage charging is engineered for better maintenance & longer lifespan of battery. If youre planning an off-grid camping, this 20A DC DC battery charger will be your perfect companion for a dual battery setup.
In dual battery setup, a DC DC charger allows you to charge an auxiliary battery from the alternator whilst driving. With the DC DC charger, the main battery remains unaffected and always ready to start the car. And the DC DC charger can activate lower input voltage operation to suit vehicles with smart alternators.This 12V DC DC battery charger can utilize a solar panel or a starting battery linked to the alternator, while giving the priority to a solar input to place less load on the alternator. The DC to DC charger is suitable for LiFePO4 and lead acid: AGM, gel & calcium batteries, and allows you to re-select the battery during charging. With the memory function of this battery to battery charger, you dont need to re-select the same battery type every time. And 6-stage charging is engineered for better maintenance & longer lifespan of battery. If youre planning an off-grid camping, this 20A DC DC battery charger will be your perfect companion for a dual battery setup.
In dual battery setup, a DC DC charger allows you to charge an auxiliary battery from the alternator whilst driving. With the DC DC charger, the main battery remains unaffected and always ready to start the car. And the DC DC charger can activate lower input voltage operation to suit vehicles with smart alternators.This 12V DC DC battery charger can utilize a solar panel or a starting battery linked to the alternator, while giving the priority to a solar input to place less load on the alternator. The DC to DC charger is suitable for LiFePO4 and lead acid: AGM, gel & calcium batteries, and allows you to re-select the battery during charging. With the memory function of this battery to battery charger, you dont need to re-select the same battery type every time. And 6-stage charging is engineered for better maintenance & longer lifespan of battery. If youre planning an off-grid camping, this 20A DC DC battery charger will be your perfect companion for a dual battery setup.
In dual battery setup, a DC DC charger allows you to charge an auxiliary battery from the alternator whilst driving. With the DC DC charger, the main battery remains unaffected and always ready to start the car. And the DC DC charger can activate lower input voltage operation to suit vehicles with smart alternators.This 12V DC DC battery charger can utilize a solar panel or a starting battery linked to the alternator, while giving the priority to a solar input to place less load on the alternator. The DC to DC charger is suitable for LiFePO4 and lead acid: AGM, gel & calcium batteries, and allows you to re-select the battery during charging. With the memory function of this battery to battery charger, you dont need to re-select the same battery type every time. And 6-stage charging is engineered for better maintenance & longer lifespan of battery. If youre planning an off-grid camping, this 20A DC DC battery charger will be your perfect companion for a dual battery setup.
in 6 offers
The lowest price for Mobi 12V 20A DC to DC Battery Charger Dual Battery System MPPT right now is $143.96 at BIG W, compared across 3 retailers.
The all-time low was $111.97 on 31 Dec 2025 — today's price is 29% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 7 June 2026.
Last updated at 07/06/2026 02:40:33
Mobi 12V 20A DC to DC Battery Charger Dual Battery System MPPT
Free delivery
Mobi 12V 20A DC to DC Battery Charger Dual Battery System MPPT
Free delivery
Mobi 40A 30A 20A DC to DC Battery Charger Solar MPPT 12V Lithium LifePO4
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mobi 40A 30A 20A DC to DC Battery Charger Solar MPPT 12V Lithium LifePO4
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mobi 12V 20A DC to DC Dual Battery Charger
Free delivery between 11–18 June
Mobi 12V 20A DC to DC Dual Battery Charger
Free delivery between 11–18 June
originally posted on ebay.com
It is a good quality product and well packaged but no instructions, so have to go online and watch YouTube videos and write my own.
originally posted on ebay.com
All good, I have used it and fixed a puncture successfully.
originally posted on sunyee.com.au
Works a treat. Automatically senses what battery is connected. Easy to connect. . Simple instructions. Does a great job
| Suitable Battery Type | AGM/Gel/Lead Acid/Calcium/LiFePO4 |
| Battery Range | 60-600Ah |
| Input | DC Battery:13-16 Volts Solar Input:16-25 Volts |
| Max Output Current | 20A |
| Minimum Start Voltage | 2.0 Volts-For battery being charged |
Mobi 12V 20A DC to DC Battery Charger Dual Battery System MPPT
Free delivery
Mobi 12V 20A DC to DC Battery Charger Dual Battery System MPPT
Free delivery
Mobi 40A 30A 20A DC to DC Battery Charger Solar MPPT 12V Lithium LifePO4
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mobi 40A 30A 20A DC to DC Battery Charger Solar MPPT 12V Lithium LifePO4
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Mobi 12V 20A DC to DC Dual Battery Charger
Free delivery between 11–18 June
It is a good quality product and well packaged but no instructions, so have to go online and watch YouTube videos and write my own.
All good, I have used it and fixed a puncture successfully.
Works a treat. Automatically senses what battery is connected. Easy to connect. . Simple instructions. Does a great job
Works as described and represents great value for money.. I used Anderson plugs as a way of connecting.
Very good unit,
Not happy doesnt charge properly and is always faulting
Seems to be what I asked for. Will see how it goes when I install it.
Every thing you need, like insurance for your tyres.
Does charge quickly, and seems like a solid bit of gear for the price , BUT a let down is it faults a lot with a loud beeping, and then u turn off and on to restart
Seems to be working well. Easy to set up and instruction manual is clear and easy to follow. Installed a 40 amp circuit breaker on input line and 30 amp fuse on output line, as suggested.
| Suitable Battery Type | AGM/Gel/Lead Acid/Calcium/LiFePO4 |
| Battery Range | 60-600Ah |
| Input | DC Battery:13-16 Volts Solar Input:16-25 Volts |
| Max Output Current | 20A |
| Minimum Start Voltage | 2.0 Volts-For battery being charged |
