This product is no longer available and has been replaced by: 29796. Some accessories, replacement parts, or services may still be available.


The 9591 wall charger is used with our rechargeable power supplies. The 9591 may be used in the United States and in other countries where the AC outlet sources 110 Vac. This device recharges a sealed rechargeable battery via AC power.

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Detailed Description

This transformer accepts 110 Vac and outputs 18 Vac at 1.2 A. Its 1.8 m (6 ft) cord terminates in pigtails for connection to the power supply's charging inputs. The 9591 is UL- and CSA-approved.

One end of the 9591 plugs into an AC wall outlet while the other end connects to the PS100 or PS200 power supply, CH100 or CH200 regulator, or the battery base of a CR3000 or CR5000 datalogger.

(The Jerome transformer replaced the previously offered version of the 9591, a Tamura 18 V, 1.1 Amp transformer, in the summer of 1999).


  • Input Voltage: 110 Vac
  • Output Voltage: 18 Vac RMS
  • Maximum Output Current: 1.2 A RMS
  • Protection (automatic reset): 85°C thermal reset breaker
  • UL Approval: UL-1950
  • CSA Approved
  • Weight: 544 g (1.2 lb)
  • Dimensions: 6.4 x 8.1 x 5.6 cm (2.5 x 3.2 x 2.2 in.)


Contemporary Products

The 9591 is a common accessory for many of our power supplies as well as dataloggers with a rechargeable base (see Overview).

Retired Products

The 9591 was sold as an option with many of our retired products including the PS12LA, PS512M, CH12R, CH512R, and CR23X. It was also shipped with our PST3, PST8, and SWD1 systems.

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