{"product_id":"battery-capacity-tester-ebc-b20h","title":"FMFPAX Battery Capacity Tester for Lithium, LiFePO4 and Lead Acid Packs, 20A Discharge Tester with External Charger Control and PC Software, EBC-B20H","description":"\u003cp\u003eThe EBC-B20H is a battery capacity tester for lithium, LiFePO4 and lead acid battery packs. It discharges a pack at a constant 0.50-20.00A, records the capacity and can switch an external charger on and off, so you can run discharge and charge steps on energy storage, electric vehicle and other new-energy packs and see the result as a curve on your PC.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-battery-pack-capacity-tester-72v-20a.jpg?v=1793581901\" alt=\"Battery capacity tester EBC-B20H for lithium, LiFePO4 and lead acid battery packs with external charger input\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eKey Features\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eConstant-current discharge from 0.50A to 20.00A in 0.01A steps. Packs of 12V-24V discharge at up to 10A; packs of 24V-72V discharge at up to 20A.\u003c\/li\u003e\n\u003cli\u003eVoltage measurement 0.10-89.00V and current measurement 0.10-20.00A, accuracy 0.5% ±0.01V and 0.5% ±0.01A.\u003c\/li\u003e\n\u003cli\u003eChoose when a discharge step ends: after a set time, when the pack falls below a voltage limit (9.00-88.00V, 0.01V steps), or by hand.\u003c\/li\u003e\n\u003cli\u003eExternal charger control: the tester watches voltage and current and switches your charger on and off. The charge step ends when the current drops below your limit, or by hand.\u003c\/li\u003e\n\u003cli\u003eUp to 5 programmed steps per test (discharge, charge, end), so one pack can be cycled without resetting the tester.\u003c\/li\u003e\n\u003cli\u003eCapacity resolution 0.001Ah below 10Ah, 0.01Ah from 10Ah to 100Ah and 0.1Ah above 100Ah.\u003c\/li\u003e\n\u003cli\u003eConnects to a PC through the supplied four-core communication cable for live data and discharge curves.\u003c\/li\u003e\n\u003cli\u003eLCD display, a SET knob (turn and press to adjust settings), a start\/stop button and a built-in cooling fan. Powered by AC 100-240V.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eLithium, LiFePO4 and Lead Acid Battery Pack Testing\u003c\/h3\u003e\u003cp\u003eUse it to measure the real capacity of LiFePO4 packs, ternary lithium packs, lead acid packs, energy storage batteries, electric vehicle batteries and new-energy battery packs. Connect the pack to the BATTERY terminals with the supplied red and black test clips, set the discharge current and the cut-off voltage, then press start.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-front-panel-controls-and-terminals.jpg?v=1793581901\" alt=\"Battery discharge capacity tester front panel controls and terminals, numbered\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eBattery Discharge Tester with External Charger Control\u003c\/h3\u003e\u003cp\u003eIn a charge step the tester only senses voltage and current and switches the connected charger on and off. It does not set or regulate the charger’s own voltage or current, so use a charger that suits your pack. Connect the pack to the BATTERY terminals and the charger to the CHARGER input (red +, black −), then program the steps.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-discharge-and-charge-wiring-diagram.jpg?v=1793581901\" alt=\"Wiring diagram for lithium battery capacity test with external charger control\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eSpecifications (12-72V Version)\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eEBC-B20H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage range\u003c\/td\u003e\n\u003ctd\u003e0.10-89.00V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage accuracy\u003c\/td\u003e\n\u003ctd\u003e0.5% ±0.01V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent range\u003c\/td\u003e\n\u003ctd\u003e0.10-20.00A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent accuracy\u003c\/td\u003e\n\u003ctd\u003e0.5% ±0.01A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge current setting\u003c\/td\u003e\n\u003ctd\u003e0.50-20.00A, 0.01A steps (12V-24V packs: up to 10A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge mode\u003c\/td\u003e\n\u003ctd\u003eDSC constant-current discharge\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge end condition\u003c\/td\u003e\n\u003ctd\u003eSet time, voltage below limit (9.00-88.00V, 0.01V steps) or manual stop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge step\u003c\/td\u003e\n\u003ctd\u003eCHG with external charger (on\/off control)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharge end condition\u003c\/td\u003e\n\u003ctd\u003eCurrent below limit or manual stop\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProgrammed steps\u003c\/td\u003e\n\u003ctd\u003eUp to 5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCapacity resolution\u003c\/td\u003e\n\u003ctd\u003e0.001Ah (below 10Ah), 0.01Ah (10-100Ah), 0.1Ah (above 100Ah)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling\u003c\/td\u003e\n\u003ctd\u003eFan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower supply\u003c\/td\u003e\n\u003ctd\u003eAC 100-240V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-12-72v-detailed-specifications.jpg?v=1793581901\" alt=\"EBC-B20H 12-72V detailed specifications: 20A discharge, 0.10-89.00V range\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eChoose Your Option\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eOption\u003c\/th\u003e\n\u003cth\u003eBattery pack voltage\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e12-72V\u003c\/td\u003e\n\u003ctd\u003e12V to 72V packs\u003c\/td\u003e\n\u003ctd\u003eSpecifications on this page apply to this version.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e36-108V\u003c\/td\u003e\n\u003ctd\u003e36V to 108V packs\u003c\/td\u003e\n\u003ctd\u003eTwo cooling fans.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-capacity-tester-36-108v-version.jpg?v=1793581901\" alt=\"36-108V battery capacity tester with two cooling fans\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eProduct Details\u003c\/h3\u003e\u003ctable\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eFMFPAX\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eEBC-B20H\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eBattery pack discharge and capacity tester\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible packs\u003c\/td\u003e\n\u003ctd\u003eLiFePO4, ternary lithium, lead acid, energy storage, electric vehicle and new-energy battery packs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComputer connection\u003c\/td\u003e\n\u003ctd\u003eFour-core communication cable, PC software\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTester size (12-72V)\u003c\/td\u003e\n\u003ctd\u003e46.5 x 25.5 x 13 cm (18.3 x 10.0 x 5.1 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePacking size (12-72V)\u003c\/td\u003e\n\u003ctd\u003e55 x 36 x 26 cm (21.7 x 14.2 x 10.2 in)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShipping weight (12-72V)\u003c\/td\u003e\n\u003ctd\u003e8.3 kg (18.3 lb)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePackage contents\u003c\/td\u003e\n\u003ctd\u003e1 tester, 2 test leads with clips (red and black), 1 four-core communication cable, 1 power cord, 1 user manual, 1 warranty card\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-capacity-tester-dimensions-specs.jpg?v=1793581901\" alt=\"Battery pack capacity tester dimensions: 46.5 x 25.5 x 13 cm\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-package-contents.jpg?v=1793581901\" alt=\"EBC-B20H package contents: tester, test leads with clips, communication cable, power cord and manual\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\u003ch3\u003eWhat is a battery capacity test and what does this tester do?\u003c\/h3\u003e\u003cp\u003eA capacity test discharges a fully charged pack at a steady current until a set voltage or time and records how much charge it delivered. The EBC-B20H does this at 0.50-20.00A and logs capacity, voltage and current for each step.\u003c\/p\u003e\u003ch3\u003eHow do I use it to test a lithium or lead acid pack?\u003c\/h3\u003e\u003cp\u003eClip the red and black test leads to the pack’s positive and negative terminals and plug them into the BATTERY terminals. Set the discharge current and the cut-off voltage with the SET knob, then press start. The test stops at the voltage limit or the time you set.\u003c\/p\u003e\u003ch3\u003eWhich battery types can I test?\u003c\/h3\u003e\u003cp\u003eLiFePO4 packs, ternary lithium packs, lead acid packs, energy storage batteries, electric vehicle batteries and other new-energy battery packs within the 12-72V or 36-108V range of the version you choose.\u003c\/p\u003e\u003ch3\u003eDoes it charge the battery?\u003c\/h3\u003e\u003cp\u003eNo. It is not a charger. In a charge step it only switches your external charger on and off by sensing voltage and current; it does not control the charger’s voltage or current.\u003c\/p\u003e\u003ch3\u003eWhat is the maximum discharge current for a 12V pack?\u003c\/h3\u003e\u003cp\u003ePacks of 12V-24V discharge at up to 10A. Packs of 24V-72V can reach the full 20A.\u003c\/p\u003e\u003ch3\u003eWhat happens to the reading if the power is cut?\u003c\/h3\u003e\u003cp\u003eThe capacity reading is not kept after a power cut, so keep the tester powered until the test finishes.\u003c\/p\u003e\u003ch3\u003eCan I record a discharge curve on a PC?\u003c\/h3\u003e\u003cp\u003eYes. Connect the supplied four-core communication cable to a PC to view the data and draw the discharge curve.\u003c\/p\u003e\u003ch3\u003eHow many test steps can I program?\u003c\/h3\u003e\u003cp\u003eUp to 5 steps, each set as discharge, charge or end.\u003c\/p\u003e\u003ch3\u003eWhat is included in the box?\u003c\/h3\u003e\u003cp\u003eOne tester, two test leads with clips, one four-core communication cable, one power cord, one user manual and one warranty card.\u003c\/p\u003e\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-capacity-tester-front-panel-view.jpg?v=1793581901\" alt=\"Battery discharge tester front panel with LCD, SET knob and start button\" width=\"1600\" height=\"1600\" loading=\"lazy\" style=\"max-width:100%;height:auto\"\u003e\u003c\/p\u003e\u003ch3\u003eRelated and Compare\u003c\/h3\u003e\u003cp\u003eFor small packs up to 30V and 5A, see the \u003ca href=\"\/products\/ebc-a05-dc-electronic-load-charger-battery-capacity-tester-power-analyzer-for-mobile-battery-testing\"\u003eEBC-A05+ electronic load battery tester\u003c\/a\u003e. For a general programmable DC load, see the \u003ca href=\"\/products\/array-3710a-programmable-dc-electronic-load-150w-0-360v-0-30a-usb-control-precision-tester\"\u003eArray 3710A electronic load\u003c\/a\u003e.\u003c\/p\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003e\u003c\/th\u003e\n\u003cth\u003eEBC-B20H\u003c\/th\u003e\n\u003cth\u003eEBC-A05+\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage range\u003c\/td\u003e\n\u003ctd\u003e0.10-89.00V (12-72V version)\u003c\/td\u003e\n\u003ctd\u003e0.00-30.00V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDischarge current\u003c\/td\u003e\n\u003ctd\u003e0.50-20.00A\u003c\/td\u003e\n\u003ctd\u003e0.050-5.000A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCharging\u003c\/td\u003e\n\u003ctd\u003eExternal charger, on\/off control\u003c\/td\u003e\n\u003ctd\u003eBuilt-in charging, up to 10V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eAbout FMFPAX\u003c\/h3\u003e\u003cp\u003eFMFPAX is the online store of Foshan Fumingfei Trading Co., Ltd. in Foshan, Guangdong, China. We supply packaging machinery, packaging materials, spare parts and selected testing, laboratory and industrial equipment to business and professional buyers worldwide. Read our \u003ca href=\"\/pages\/shipping-duties-taxes\"\u003eshipping, duties and taxes\u003c\/a\u003e, \u003ca href=\"\/pages\/warranty-policy\"\u003ewarranty\u003c\/a\u003e and \u003ca href=\"\/policies\/refund-policy\"\u003erefund\u003c\/a\u003e policies, or \u003ca href=\"\/pages\/contact\"\u003econtact us\u003c\/a\u003e.\u003c\/p\u003e","brand":"FMFPAX","offers":[{"title":"12-72V","offer_id":47702070755417,"sku":"FMF-EBC20H-72V","price":250.99,"currency_code":"USD","in_stock":true},{"title":"36-108V","offer_id":47702070788185,"sku":"FMF-EBC20H-108V","price":320.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0718\/4354\/5177\/files\/fmfpax-ebc-b20h-battery-pack-capacity-tester-72v-20a.jpg?v=1793581901","url":"https:\/\/fmfpack.com\/products\/battery-capacity-tester-ebc-b20h","provider":"FMFPAX","version":"1.0","type":"link"}