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28.8V, 2.5Ah, 72Wh

PH3059 Specification Summary

Part numbers:


chemistry / cell array:

8 high power density Li-Ion 18650 cells / 8S1P array

capacity / energy:

2.5Ah / 72Wh


Vmax=33.6V Vnom=28.8 V Vcutoff=20.0V

eq. li content:


max continuous discharge


max cont discharge to cutoff voltage



Fully SMBus Compatible

data system:

Conforms to Smart Battery Specification


Inspired Energy Power series charger PH4000 or PH5000, or Level 3 SMBus Charger. For an open-frame board, the Inspired Energy EB262 is recommended.

Note: The PH3059 does NOT fit the regular "CHxxxx" range Inspired Energy Chargers.

physical dimensions:

DEPTH: 1.10" / 27.7mm
LENGTH: 6.62" / 168.1mm
WIDTH: 3.22" / 81.8mm
WEIGHT: 533g / 19oz

mating connector:

7-pin D-sub Amphenol: L177WA7W2PMP3SVC745IE Part #: 619017
or Amphenol: L177TWA7W2P (Chassis) + 2 Pins: L17DM53745-1
IE Kit Part #: 699013

Note the PH3059 may be converted to provide output via flying leads using IE Flying Lead Conversion Kit: 699014

rec. battery cavity:

29 x 83 x 169mm
The battery may be bolted to a chassis by the use of four M3 bolts.


Integrated "Always-on" 5-bar LCD fuel gauge on the end opposite the connector.


The PH3059 high power density smart battery is ideal for use in uninterruptible power supply systems and low-current DC motors etc. It uses high power density Li Ion manganese cells to enable very high current delivery for short periods. However, due to its higher operating voltage, it uses a new standard connector & requires a different charger to our regular "N-series" standard batteries. Its rugged construction reflects it application in mobile environments.

The PH3059 smart Li ion battery can be customized to meet your needs. Maybe a label change to your corporate livery? Or a firmware modification to modify the smart battery data to suit your needs? Or perhaps you need the performance of the PH3059 changing. Creating custom-hybrids of standard batteries is a part of Inspired Energy's established expertise.

Inspired Energy manufacturers all products to order. We sell direct to clients globally in quantities from 1 to  >50,000. We accept Credit cards for small orders & samples.

If you are interested in purchasing a standard battery pack, or receiving a quotation please contact us at:
US Toll Free: 1-888-5-INSPIRE (1-888-546-7747) or USA 352 472 4855
or use the current email address shown on our contacts page.