Mastervolt Batteries Lithium Ion MLS Series
Mastervolt Batteries Lithium Ion MLS Series
Mastervolt Batteries Lithium Ion MLS Series

Mastervolt Batteries Lithium Ion MLS Series

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The MLS Series is the MLI Ultra's smaller brother, for use in a small system where reducing weight/volume and/or increasing cycle life is key. It is specifically designed to be as easy as possible to install. The MLS series comes with an integrated safety disconnect. This saves installation and commissioning duty than the MLI Ultra series, it gives an ideal entry to Lithium Ion technology. A perfect alternative to replace existing lead-acid batteries.


  • Entry into Lithium Ion technology
  • For smaller capacity applications up to 90Ah
  • Drop-in replacement for lead-acid batteries
  • Saves up to 70% in space and weight
  • Three times the lifespan of traditional batteries (2000 cycles)
  • High cycle efficiency
  • Fast charging up to one hour
  • High discharge rate up to 1C
  • Integrated Battery Management System (BMS)
  • Self-regulating due to its integrated automatic safety disconnect
  • Suitable for unlimited parallel operation
  • Waterproof electronics cabinet
  • Extremely safe LiFePO4 chemistry
  • Tested and certified according to UN38.3


Description MLS 12/80 MLS 12/130 MLS 12/260 MLS 12/390
Nominal battery voltage 12V 12V 12V 12V
No-load voltage, fully charged 12.8V 12.8V 12.8V 12.8V
Nominal battery capacity 6Ah 10Ah 20Ah 30Ah

Nominal battery energy capacity

77Wh 128Wh 256Wh 384Wh
Max. charge current 6A (1 C) 10A (1 C) 20A (1 C) 20A (0.67 C)
Max. continuous discharge current 6A (1 C) 10A (1 C) 20A (1 C) 30A (1 C)
Max. short discharge current For 30 sec, 12A (2C) For 30 sec, 25A (2.5C) For 30 sec, 40A (2C) For 30 sec, 60A (2C)
Peak discharge current For 2 sec, 24A (4C) For 2 sec, 48A (4.8C) For 2 sec, 85A (4C) For 2 sec, 100A (3.3C)
Cycle life 2000 at 80% DoD ~2000 at 80% DoD ~2000 at 80% DoD ~2000 at 80% DoD
Battery terminals M5 M5 M5 M5
Mounting position Upright or Longside Upright or Longside Upright or Longside Upright or Longside
Max. Outer diam. L x W x H mm 90 x 70 x 109 151 x 65 x 102 180 x 77 x 161 182 x 126 x 140
Weight kg 0.8 1.5 3.1 4.9

Technical Specifications:

Battery chemistry Lithium Iron Phosphate
Protection degree IP65 (Electronics cabinet)
Parallel connection Unlimited
Series connection No
Protections Over voltage, under voltage, over temperature
Safety disconnect Yes, electronic

After ordering online, you will receive an automated email confirmation containing your order details. Your order will then be confirmed within a few minutes of placing your order.

It is our policy to ensure we deliver to our customers in a timely manner. In order to achieve this we use a range of freight companies depending on the size and weight of your order. In some instances we may use a number of carriers to get your products to you. For example, chain may come by road, some electronic equipment by air.

Most orders are shipped within 2 - 5 Days

Shipping rates

Orders delivered to Australian Post Codes under $399 attract an $15.00 shipping charge.

Orders of $399 or more ship free.* Excludes Bulky Or Dangerous Goods

For Remote areas and bulky items. If the cost to send is vastly different to our standard delivery costs, someone from our team will contact you prior to dispatch to arrange further payment or to issue a refund if you are not happy with the additional charges.

International orders will be charged at $0.00 initially and our staff will be in contact with a shipping quote. If the quote is not accepted the customer reserves the right to cancel their order and be refunded in full.

Should you have any queries or concerns about shipping, please don't hesitate to get in touch by clicking the support button on bottom right of the page.

What Our Customer Say

i ordered 6 port holes and these guys found exactly what i needed and went out of there way so much to help me 5 star service .


Prompt shipping and a good price. Item was well packed and arrived as ordered and undamaged. Thanks

Tom Mercer

Good quality parts easy to order on downside a couple of delays but they were quick to call and let me know

Darcy Scholte

Good service. Parts delivered on time and in good condition. There was a bit of mix up with one of my first orders but very promptly sorted and sent our to...


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