ALTO-250Wh and ALTO-500Wh

Battery Module

Introducing the "next gen" technology to the renewable market. A battery system that is agnostic and that can charge and discharge in freezing temperatures at 1c from -30c.

50y+

Expected Life

Warrantied for 10k cycles or 25 years*

Truly Modular

No cables needed to connect the batteries to the system

IoT Capable

Easily know the health/charge status of each battery module
* See warranty manual for details
Additional info
Specs & Downloads
Warranty
This module has the following features:
  • LTO (Lithium Titanium Oxide)

  • 10K cycles to around 90% remaining capacity

  • Light weight

  • Truly modular and portable

With our patented1 cableless magnetic interconnect you don’t need any tools, insert away, the magnets take care of the rest
Model ALTO-500Wh
Voltage 12VDC Nominal (24v and 48v configurable)
Capacity 500Wh
Self discharge rate/month < 1%
MAX continuous Charge/Discharge rate 500Wh / 40Ah - (C/1)
Life Cycles 10k@100% DOD for 90% Capacity remaing
DOD 100%
Charge/Discharge Temperature -22° to 131° F (-30° to 55° C)4
Storage Temperature -40° to 131° F (-40° to 55° C)
Warranty10,000 Cyles or 25 Years on cells  10 Years BMS @ 100% DOD
Module Dimensions5.5” x 5.5” x 11.5” (14 x 14 x 27 cm)
Weight per module18 lb
Assembly NoWire
Warranty

100% DOD

10,000 cycles or 25 years on cells operating between 10-35c

10 years on BMS, extendable to 25 years

1 Patent #: US 9,907,195 B2 

2 Please contact our sales for details on extending your BMS warranty to 15/20 year full terms 

3 We reserve the rights to modify any of the specifications 

4 Temperatures above 95°F 35°C will result in reduced life 

Packed with features.

Built super modular.

Scalable

Need more power? 
Add more modules.

Temp Resistant

Charge and discharge in 
freezing temperatures.

Charging Ports

Charge your devices directly form the optional accessories.

Low Self Discharge

Less than 1% discharge 
per month.

~18lb

Light Weight

Quick install/removal

100%

DoD

Register to download spec sheet

Split Comparison

Find the perfect size for your power needs.

Small Size

ALTO-250Wh
This battery has enough capacity to power a 10W LED light for around 25 hours.
Power a 100W LCD screen or load for ~2.5 hours
~9.5lb
Weight
250wh
(12.5V@20Ah)
Capacity
100%
DoD
Extremely Portable

Large Size

ALTO-500Wh
This is one time you want to “large size your order”
About 50 hours of runtime for the same 10W LED
~18lb
Weight
500wh
(12.5V@40Ah)
Capacity
100%
DoD
Extra Juice

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