12V 75Ah Lithium Battery PowerTop with DCDC



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Your Baintech 75Ah Lithium PowerTop is a portable 75Ah lithium battery with convenient plugs to provide power for a variety of purposes. Perfect for your campsite, 4WD, or RV. Lightweight, compact, plug and play! Portable power, anywhere you need it.

We’re currently out of stock of this item. Please contact us to speak with our sales team about placing a pre-order for this item.


75Ah Lithium Battery Powertop provides more usable capacity than lead acid batteries. Deep discharging does not affect the life of a lithium battery the way it does with lead acid batteries. You can use the battery longer before needing to recharge, without damage to the battery.

75Ah Lithium Battery Powertop Specifications:


  • 3 x 30A ANL Fuses
  • 1 x 30A fuse for all Accessory Sockets
  • 2 x 30A fuse (50A in Total) for Grey Anderson loads or chargers



  • Maximum continuous Discharge – 60A
  • Maximum continuous Charge – 60A
  • Maximum connected Inverter – 600W
  • Maximum connected solar panels – 800W


Lithium Cells Capacity

  • 75Ah at Nominal 12.8V


Accessory Specifications

  • Cig Socket 10A max
  • Engel Socket 10A max
  • USB C 2.4A max
  • USB Dual 2.1A max

75Ah Lithium Battery PowerTop –  Charging your PowerTop

12V AC chargers, solar chargers and DC-DC chargers connect to the grey Anderson Plugs. All charging sources must be under 50A. The PowerTop can be charged from 2 sources at the same time as long as the 50A total limit is not exceeded.

The PowerTop will automatically cut out when the battery is fully charged. It also cuts out when battery gets too low.

When fully charged the battery will be at 13.3-13.5V.
Discontinue use when the battery is approximately 11V. It will automatically cut out at approximately 11V.

75Ah Lithium Battery PowerTop


Cost Effective Over Life Cycle
When considering the usable capacity and lifespan of lithium batteries, they work out cheaper than lead acid. When you add the cost and inconvenience of refitting new lead-based batteries every few years the total cost of ownership over the long term is far better with lithium batteries.

Longer life
Lithium batteries are rated for 2,000 – 5,000 cycles and much more if used carefully, giving you several times the life expectancy of standard lead acid batteries

Lithium batteries allow you to pull far more amps out of the same size battery systems

Lithium batteries are less than half the weight of the equivalent lead acid battery.

Fast recharge
Lithium batteries charge more efficiently, and don’t require as many stages during charging. Therefore, they will charge faster, and hold more of the energy from solar panels and other charging devices

75Ah Lithium Battery PowerTop



How much solar can I use to charge the PowerTop?
The maximum amount of solar to use with the PowerTop is 800 watts.

Is it waterproof?
The PowerTop is not waterproof. Whilst the battery is mechanically protected, the enclosure is not designed for a wet environment. Do not submerge the battery in water or expose the battery to direct water spray. Avoid exposing the battery to salty water spray and keep in a protected space.

How do I know if my battery is fully charged?
The Voltmeter will indicate the battery voltage. Use the below as an approximate guide.
100% – 13.4V
50% – 12.8V
0% – 10V

How long will it run my fridge for?
This will vary greatly on your fridge type; operating amp draw and varying heat conditions. Remember, it is best practice to keep your battery topped up, by putting more in than you are drawing out.


  • Cool your fridge and drinks before running your fridge off the PowerTop
  • Maintain your battery via charging source
  • Keep frozen bottles of water to keep the internal temp lower so it doesn’t have to work as hard


The voltmeter with the circular ring of LED’s will give the voltage and an indication on how full the battery is. When an appliance is connected, the voltage will dip a small amount and when a charge is applied the voltage will raise a small amount. This is normal.

If storing for extended periods it is recommended that you switch off the battery. The lithium cells will self-discharge very slowly if not charged for prolonged periods, so it is a good idea to charge the battery every couple of months.

Anderson Plugs
The grey Anderson plugs are bi-directional and can handle loads or charging to a maximum of 50A. This means a maximum inverter size of 600W.

Ciga Sockets and USB sockets
Ciga sockets should only be used as intended to charge devices with a maximum load of 10A.


Do’s and Don’ts

This battery contains lithium iron phosphate (LFP) cells. While LFP cells are the safest Li-Ion chemistry, the stored chemical energy represents a risk of fire, burns or explosion if misused.
Avoid injury to yourself and others, adhere to the warnings in this Guide.

• Avoid mechanical shock;
• Do not expose to fire;
• Do no pierce battery;
• Do not disassemble;
• Do not drill into battery enclosure;
• Do not short the battery terminals;
• Do not allow water to enter the battery; and
• Do not expose battery to > 60C temperatures.

To ensure a long and safe life from your battery, please ensure you consider the following.

Ensure the battery is physically secure
Even though lithium batteries are light weight in comparison to lead acid, they can still become a dangerous projectile in a moving vehicle, RV, cart or boat if not secured. Ensure the battery is safely secured before travel. If in doubt seek advice and consider making use of custom battery tray to safely secure the battery.

Do not penetrate the battery enclosure
You may be tempted to drill into the aluminum enclosure to secure mounting brackets. Doing so may inadvertently penetrate one of the cells which could cause thermal runaway and lots of smoke. Do not under any circumstances drill or penetrate into the enclosure. Use a battery box, tray, or alternatively use strapping and clamping to secure the battery in place.

Maintain an acceptable temperature range
Like all batteries, these batteries operate and perform the best as well as last the longest in a cool and stable temperature environment of between 10C and 25C. The maximum window of acceptable operation is 0-45C.

If you regularly operate outside of this suggested range you should consider changing the battery location or actively cool or heat the environment in order to preserve battery life. If the ambient temperature that the battery operates in is greater than 60C you should cease use immediately. Operating outside of these guidelines diminishes the life and performance of the battery and voids the warranty.

Avoid repeated shock and vibration
Whilst the battery is robustly constructed and protected in an aluminum enclosure, it is not designed to operate continuously in high shock or high vibration environments. Normal use in a 4WD environment is acceptable and the battery has been designed in accordance with these expected conditions. However, dropping the battery or exposing the battery to a high number of excessive vibrations may lead to a fault or failure of the battery.

Avoid water or salt spray
Whilst the battery is mechanically protected, the enclosure is not designed for a wet environment. Do not submerge the battery in water or expose the battery to direct water spray.

Avoid exposing the battery to salty water spray such as in a marine environment to avoid corrosion. Salt laden air may also cause corrosion in the long term; minimise exposure by installing the battery is a protected hatch or compartment


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