12-Cell (4s3p / 3s4p)
Product Pic
CH5000 Specification Summary
LENGTH: 180mm / 7"
WIDTH: 92mm / 3.5"
WEIGHT: 220g / 8oz
CONNECTOR5-Pin Standard Connector.
LED STATUS DISPLAYGreen flashing: Charging
Green solid: Charge complete
Red flashing: Fuel gauge Calibration recommended
Blue Flashing: FG calibration in process
Blue Solid: FG Calibration complete
Red solid: Error
119x38x60mm, 500g/18oz
 UL listed, CE Compliant
AC CABLECH5000A: 110V N. USA 3-pin cord
CH5000E: 220V Euro. 2-pin cord with GND recess
CH5000U: 240V UK 3-pin cord
CH5000X: No AC cable included


The CH5000 desktop smart charger/calibrator is a standalone unit which provides the capability to carry out charging and fuel gauge calibration independently of the device which uses the battery pack. The CH5000 works with every smart, standard “N” Series Li Ion and NiMH battery in the Inspired Energy portfolio irrespective of size, shape, voltage, or capacity. With its multi-voltage power supply, the CH5000 works throughout the world. Variants are available for use in North America (CH5000A) Europe (CH5000E) & the UK (CH5000U).

CH5000 REACH, RoHS2, CE & Customs Declarations are available to download from our Shipping Page

Standard product approvals are listed above. Additional agency testing of these products can be arranged to meet specific testing needs. However, as the manufacture & design authority rests with Inspired Energy, all testing must be undertaken directly between us and the agency. Please contact us for details and pricing


Smart battery packs have a highly accurate on board fuel gauge. Under certain operational conditions this fuel gauge may drift and begin to lose accuracy. The onboard battery electronics keep a log of this drift and the CH5000 reads this value from the smart battery when the battery is inserted.

If the battery fuel gauge requires calibration (Charger LED flashes red), the user can press the button on the front of the CH5000A to initiate a calibration cycle.

Battery fuel gauge calibration can take a very long time & if interrupted, the process will need to start again. We recommend only pressing the calibrate button if the charger indicates that it is required (Flashing red LED) and if you have sufficient time for the process to complete.

Recharge / Calibration Times:

Different battery packs will require differing recharge times. The times given below are for a full charge from 0% to 100% state of charge. They are valid for all variants and custom hybrids of each battery model. (For example the Ni2020AG has the same recharge time as the Ni2020HD.)

Click here to learn more about calibration. What is it & why is it needed.

Why are the calibration times so long?

Two factors contribute to the long calibration times:

– The battery must be discharged through a fixed resistor. Higher voltage batteries will discharge at a faster rate than lower voltage batteries (Ohm’s law) this is why the 14.4V batteries recalibrate fastest & the 3.6V batteries are the slowest.

– The charge & discharge process includes periods of rest which enable the impedance tracking firmware within the battery to do its work.

Recharge Time (hrs)Calibration time (hrs)
ND2034, ND205422
ND2037, ND205733
NF2030, NF204030
NH2034, NH2054
RH2024, RH2044
Ni2020, Ni204035
NL2024, NL2044, NL2054329
NJ1020 / Ni103012

International Variants:

  • CH5000A US/North American AC plug
  • CH5000E : European 2-pin AC Plug
  • CH5000U : UK 3 Pin AC Plug
  • CH5000X: No AC cable

What’s In The Box?

  • CH5000 Desktop Quick Charger / Calibrator unit
  • Inserts for battery packs
  • Power supply
  • Mains Lead (See below for international options)
  • Instruction sheet

Ready to buy?

The CH5000 is designed and built in the USA by Inspired Energy, Inc.
Inspired Energy manufactures all products to order, and 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 our products, 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 contact us page.

Inspired Energy, LLC

25440 NW 8th Place, Newberry, FL 32669 USA

P: 352-472-4855

Toll Free: 888-546-7747

P-Series batteries use a high-current, 7-pin D-sub connector. They are more rugged than the N-Series batteries - some of them are IP65-rated - they also are optimized for using cells with low internal impedance which excel in low temperature and high discharge current applications. They require the use of a "PH" series charger.
N-Series batteries use a 5-blade standard battery connector. They are optimized for using high capacity cells for maximum runtime. They require the use of a "CH" series charger.