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COTEK CX1235 Battery Charger

Extend your enjoyable time .


Main Features
  • Built-in Engine Start Battery (ESB) output
  • 3-stage charging mode
  • Green design (sleep mode): charging with low low audible noise
Battery Type Lead Acid / Li-ion / Gel / AGM
Output Voltage 12V
Standard Boost Charge Voltage 14.4V / 14.7V (select by switch)
Standard Float Charge Voltage 13.8V / 13.5V (select by switch)
Rated Current 25A
Main Output (Quantity) 2
Input Voltage Range 90~264VAC
Efficiency 87%
Operating Temperature -20~50℃
Storage Temperature -40~85℃
Safety CE
Dimension (WxHxD) 183x72x263 mm
Weight (Net) 1.9kg

CX1235 Features

  • Universal AC input with active PFC
  • Suitable for lead acid, Li-ion, Gel and AGM batteries
  • 3-stage charging mode
  • Dry contact for alarm
  • Support RS-232 communication protocol
  • Voltage temperature compensation
  • 2 stage fan speed control (sleep mode)
  • High efficiency and high reliability
  • Built-in battery rescue function
  • Built-in Engine Start Battery (ESB) output function
  • Double output support double battery
  • Protection: Short Circuit / Over Voltage / Over Temperature / Brown-out
  • Withstand 2G vibration test
  • CE approved
  • Accessory: Remote controller CR-1


  • Do not open or disassemble the Inverter. Attempting to do so may cause risk of electrical shock or fire
  • We guarantee this product against defects in materials and workmanship for a period of 24 months from the date of purchase. In case you need to repair or replace any defective power inverters, please contact
  • This warranty will be considered void if the unit has been misused, altered, or accidentally damaged. We are not liable for anything that occurs as a result of the user’s fault


  • *Please NOTE: Due to the impact of COVID-19, order deliveries may be temporarily delayed. US orders will be processed for shipment within 1-7 business days; International orders will be processed for shipment within 5-10 business days. Partially international orders are stopped.
  • We are proud to offer free shipping to the Continental US for orders over $50
  • Orders are processed in 72 hours
  • All shipping fees are non-refundable. There is no circumstance where shipping fees will be refunded. This is the opportunity cost of the customer.
  • Missing Items: If you think an item is missing from your order, you must contact us within three (3) days of receiving the package as indicated by the tracking number.
  • Please contact us at


We accept order cancellation before the product is shipped or produced. If the order is canceled you will get the full refund. We cannot cancel the order if the product is already shipped out.

We accept the return of products. Customers have the right to apply for a return within 14 days after the receipt of the product. To be eligible for a return, your item must be unused and in the same condition that you received it. It must also be in the original packaging. To complete your return, we require a receipt or proof of purchase. Please do not send your purchase back to the manufacturer.

All returned products are subject to a 20% restocking fee and the return shipping must be pre-paid.

Please contact us at



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