LiPo ESR Meter Mark II

$149.99 USD

Sale Sold out

Shipping calculated at checkout.

17 in stock

For years, the ESR Meter has been the de facto standard for judging the quality of lithium battery packs. With the new Mark II model, it's better than ever!

From tiny single cells all the way up to a 6S 25,000mAh multirotor pack, this meter is ready to instantly provide objective data to let you measure and track the health of your packs. Internal resistance is a crucial aspect of a battery's performance, affecting the rate at which it can safely be charged and discharged. The ability to measure internal resistance enables you to compare batteries from different manufacturers with confidence rather than relying on often-suspect C ratings.

The ESR (Equivalent Series Resistance) meter gives you just that ability - powered by the battery itself, the meter provides the internal resistance of an entire pack to a resolution of 0.3 milliohms or each individual cell to a resolution of 0.04 milliohms. With the added ability to enter the capacity of the pack being measured, you can now also find out the real C rating of the battery, based on the measurable resistance.

With the updated design letting you connect your battery's balance lead directly to the meter, you can check every cell simultaneously, making the ESR Meter a more useful tool than ever.

Shipping & returns

Shipping policy

Processing

Orders ship within 1–2 business days (excluding weekends, US holidays, and posted vacation dates). You receive a confirmation email with tracking once your order ships.

Rates and delivery

US orders of $99 or more ship free (Standard).
Standard (US): 3–7 business days. Expedited (US): 1–3 business days.
International: 7–14 business days depending on destination and carrier; rates are calculated at checkout.

Restrictions

We ship to selected countries only; availability is shown at checkout.
No P.O. Boxes or APO/FPO addresses.
Batteries ship by ground only and cannot be shipped outside the US. The DinDrones battery box with batteries is US-only.

Lost or damaged shipments

Contact us through our contact page within 7 days of the delivery date. We open the carrier claim and resolve it with you.

Changes and cancellations

Orders can be changed or cancelled within 24 hours of placement. After that, the order has usually been packed; use the return policy instead.

Customs and duties

International customers are responsible for any customs fees, taxes, or duties charged on import.

Refund policy

30-day returns

Unused items in original condition and packaging can be returned within 30 days of delivery. Message us through our contact page with your order number to get return instructions before shipping anything back.

What is not returnable

Frames, parts, or electronics that have been built, flown, soldered, or crashed.
Batteries and other hazmat items, once shipped.
Custom or 3D-printed items made to order.

Refunds

Refunds go to the original payment method within 5 business days of receiving and inspecting the return. Original shipping charges are not refunded; return shipping is paid by the customer unless the item arrived damaged or we shipped the wrong item.