Skip to product information
1 of 8

Battery Tender®

Power Tender® 10-Bank 4 Amp 12V/6V Battery Charger and Maintainer

021-0134-DL-WH

Regular price $849.95
Sale price $849.95 Regular price $849.95
Shipping calculated at checkout.
In stock
Sorry, it's out of stock.

But we can let you know when it's back in.

Payment methods
  • Amazon
  • American Express
  • Apple Pay
  • Discover
  • Google Pay
  • Mastercard
  • PayPal
  • Shop Pay
  • USDC
  • Visa
Shop safely with us

  • Secure Checkout
  • Warranty Backed
  • Genuine Parts
Got a question?
Power Tender® 10-Bank 4 Amp 12V/6V Battery Charger and Maintainer

$849.95

Description

Ten vehicles. Ten independent charging circuits. Ten individual chemistry selectors. Ten individual voltage selectors. The Power Tender® 10-Bank 4 Amp is the fleet-scale solution for operations that maintain large numbers of vehicles with varied battery requirements — dealerships, rental operations, motorsports teams, service centers, and collector garages where ten batteries with different chemistries and voltages need simultaneous independent maintenance at full output.

Ten Independent Banks — Each Fully Configurable

Every bank on the Power Tender® 10-Bank has its own chemistry selector (lead-acid or Lithium) and its own voltage selector (6V or 12V). Each bank runs its own complete ISM (Infinite Sequential Monitoring™) cycle at full 4 Amp output, independent of every other bank. The configuration on Bank 1 has no effect on Bank 6. A bank in bulk charge does not reduce output to a bank in float maintenance. Ten batteries maintained simultaneously — each exactly as if it had its own dedicated Battery Tender® charger, with the correct chemistry and voltage profile for that specific battery.

ISM on All Ten Banks Simultaneously

Each of the ten banks independently runs the full 4-stage ISM algorithm at 4 Amp and the bank's selected voltage and chemistry:

  • Initialization — Individual health check before current flows on each bank
  • Bulk Charge — Full 4 Amp output at the selected voltage and chemistry restores capacity
  • Absorption — Current tapers per bank as each battery approaches full charge
  • Float Maintenance — Correct maintenance protocol for lead-acid or Lithium delivered 24/7, indefinitely, at the selected voltage

Compatible per bank: 14Ah to 100Ah at 6V or 12V. Lead-acid: flooded, AGM, gel cell, and sealed maintenance-free. Lithium: LiFePO4.

Fleet and Commercial Applications

  • Powersports and motorcycle dealerships maintaining floor inventory with mixed lead-acid and Lithium batteries
  • Rental operations with 10-unit fleet vehicles in overnight storage
  • Motorsports teams maintaining race, practice, and support vehicle batteries across chemistry types
  • Service centers with multiple customer vehicles in simultaneous storage
  • Golf courses maintaining cart fleets alongside utility vehicles
  • Collector garages with 10-vehicle mixed-chemistry and mixed-voltage collections
  • Any commercial or institutional operation maintaining 10 batteries of varying chemistry and voltage simultaneously

One Unit vs. Ten

Ten individual Battery Tender® chargers maintain ten batteries with equivalent per-battery results — but require ten power outlets, ten wall units, ten sets of cables, and ten separate purchases. The Power Tender® 10-Bank delivers the same independent per-battery ISM performance from a single wall outlet, a single unit footprint, and ten dedicated output cables with per-bank chemistry and voltage configuration.

4 Amp Per Bank

At 4 Amp per bank, the Power Tender® 10-Bank charges and recovers batteries more than three times faster than a 1.25 Amp Plus per bank during bulk charging — for both lead-acid and Lithium chemistries — practical for operations where batteries need to be ready on a schedule.

Automatic Temperature Compensation

All ten banks automatically adjust charge voltage based on ambient temperature for lead-acid applications — each bank delivering the correct voltage to its battery regardless of storage conditions.

Safety Features

  • Spark-proof connection on each bank — no current flows until polarity and connection are confirmed correct per bank
  • Reverse polarity protection per bank — incorrect connection on one bank does not affect the remaining nine, protecting Lithium BMS systems across the fleet
  • Short-circuit protection per bank — individual fault isolation across all ten banks
  • ETL and CETL certified

ISM float maintenance on all ten banks prevents sulfation in lead-acid batteries and delivers the correct Lithium maintenance protocol simultaneously across the entire fleet. Battery life consistently extends from 2–3 years to 5 years or more on every battery connected.

3-Year Limited Warranty | DeLand, Florida Since 1965

What's the returns policy?

Most Battery Tender by Deltran product support issues can be resolved remotely without sending the unit in for evaluation or service. Before initiating a return, please contact Battery Tender customer support at support@deltran-global.com or 386-736-7900 for troubleshooting and diagnostics.

If you are not 100% satisfied with your purchase, you may return the product for a full refund of the purchase price (shipping charges are non-refundable) or exchange it for another item. Returns or exchanges are accepted within 30 days of the original purchase date.

To initiate a return, please email returns@deltran-global.com to request approval. We reserve the right to deny refunds for items returned without prior approval.

Shipping Your Return

  • Customers are responsible for the cost of return shipping.
  • Shipping charges are non-refundable.
  • If you are returning an item valued over $49.95, we recommend using a trackable shipping service or purchasing shipping insurance. We cannot guarantee receipt of returned items.

Restocking Fees for Damaged or Incomplete Returns

Returned products must be in original condition with all accessories, packaging, and components included. Items returned incomplete, damaged, or with missing parts may be subject to a restocking fee. The fee amount is determined based on the condition of the returned product and the extent of missing or damaged components. We reserve the right to deny a full refund for items that are not returned in resaleable condition.

How fast is shipping?

Please review your shipping information for accuracy before submitting an order. Battery Tender® is unable to cancel or change a shipping address once the order has been placed. 

Battery Tender offers Standard (3-4 business days), Ground (5-8 business days), and Expedited (1-3 business days) shipping service options: 

  • For orders over $99.95, the cost of Standard/Ground shipping is free to the 48 contiguous US states. 
  • For orders under $99,95, the cost of Standard/Ground shipping is a flat rate of $9.95 to the 48 contiguous US states. 
  • Expedited shipping is a flat fee of $14.95 to the 48 contiguous US states.  
  • Ground shipping is a flat fee of $25 for orders shipped to AK, HI, USVI, and PR. We do not offer Standard or Expedited shipping outside the 48 contiguous US states

Normal processing time is 2 days from receipt of order, excluding holidays and weekends. Delivery times are estimates and are not guaranteed, as shipments may be affected by weather-related delays or events outside of our control. Carrier will be selected at the sole discretion of Battery Tender.

You will receive a shipping confirmation email containing tracking information once your order has shipped. Tracking will be active within 24 hours of the shipping confirmation email.

Please note, we do not ship internationally or to PO Boxes or APO/FPO at this time.

Does it come with a warranty?

Most Deltran product support issues can be resolved remotely without sending the unit in for evaluation or service. Before initiating a warranty claim please contact Deltran technical support at support@deltran-global.com or (877) 456-7901 for troubleshooting and diagnostics.

Complete the request form below to initiate a warranty claim.

WARRANTY REQUEST

Deltran warrants its products for a period of up to 10 years, depending upon the model, from the date of original purchase against defective material or workmanship only. If Deltran qualified service technicians determine that the likely cause of the product malfunction is due to either defective material or workmanship, then the product will be repaired or replaced at the discretion of Deltran. In the event that a product under warranty is discontinued, we will replace it with a comparable current model of equal or greater value.

It is the obligation of the original purchaser to forward the product, with the proof of purchase, to either Deltran or one of its authorized factory representatives.

1-90 days after purchase: Contact Deltran Returns at returns@deltran-global.com or 877-456-7901 for RGA and prepaid return shipping label.

91 days until the expiration of warranty: Shipping costs to Deltran are the responsibility of the purchaser. If the unit is faulty, we will repair or replace it and return it at no charge.

The manufacturer makes no warranty other than this limited warranty and expressly excludes any implied warranty including any warranty for consequential damages.

This is the only express limited warranty and the manufacturer neither assumes nor authorizes anyone to assume or make any other obligation towards the product other than this express limited warranty.

The manufacturer makes no warranty of merchantability or fitness for the purpose of this product and expressly excludes such from this limited warranty.

Some states do not allow the exclusion or limitation of incidental or consequential damages or length of an implied warranty so the above limitations or exclusions may not apply to you.

This limited warranty is VOID under the following conditions:

  1. The product is misused, subjected to careless handling, or operated under conditions of extreme temperature, shock, or vibration beyond Deltran's recommendations for safe and effective use.
  2. The product is disassembled or repaired by anyone who is not a Deltran factory authorized service representative.
  3. The electrical connections to either the AC input or the DC output of the charger are modified without the express written consent of the Deltran engineering department.
  4. The product was purchased from an unauthorized source. Warranty is not transferable from original purchaser.