{"id":564,"date":"2024-01-22T13:44:04","date_gmt":"2024-01-22T13:44:04","guid":{"rendered":"https:\/\/babe80e34512396407.temporary.link\/?post_type=product&p=564"},"modified":"2026-07-19T16:50:39","modified_gmt":"2026-07-19T16:50:39","slug":"ablemail-amt-12-battery-maintainer","status":"publish","type":"product","link":"https:\/\/1961.org.uk\/testit\/?product=ablemail-amt-12-battery-maintainer","title":{"rendered":"Ablemail AMT-12 Battery Maintainer – Now available with Integrated Bluetooth!"},"content":{"rendered":"

When your Campervan or Motorhome – or your River Cruiser or Canal Boat for that matter – is parked (or moored up \ud83d\ude09 ), it is a good idea to have a way to keep the Starter Battery maintained with a reasonable charge.<\/p>\n

Modern vehicles especially can have quite a drain on the Starter Battery and a week or two of sitting around can have consequences for the health of your Starter Battery. Leaving the van plugged in on the drive way or your boat on a Marina can be an option of course, but if you don’t have a driveway, or are moored on a towpath or bank that is likely not an option and does rely on you having a setup that charges the starter battery from your mains charger.<\/p>\n

Solar is a great way to keep a charge going into the Leisure Battery, but rarely will do anything for the Starter Battery.<\/p>\n

So what is the answer?\u00a0 The AMT-12!\u00a0 The First photo shows the connections, the Second notes what they are\u00a0 (there are also labels on the side of the device as well)<\/p>\n

\"\"\u00a0 \"\"<\/p>\n

The Ablemail AMT-12 Battery Maintainer is an microprocessor-controlled intelligent Battery Maintainer, compatible with both Lead Acid Batteries and Lithium Batteries, and with vehicles with either Standard Alternators or Smart Alternators.<\/p>\n

This unit will trickle charge the Starter Battery at a pulsed 3A level whilst the Leisure Battery is at a predefined voltage level (dependant on the setting selected on the AMT-12) for optimum maintenance, and if the Starter Battery drops to a a lower preset level, the Maintainer kicks in again automatically to prevent damage to the battery.<\/p>\n

We think it is essential to look after the Batteries in your vehicle or your boat, and this is why the AMT-12 Battery Maintainer can be an essential weapon in the arsenal of Battery Monitoring and Maintanance, complete with all cabling needed to add this kit to an existing B2B or split charge Relay system, so all you will need is basic tools.<\/p>\n

Note that this product, like many others we sell, are part of a continuous improvement to deliver better flexibility and features.\u00a0 In the case of the AMT-12 as shown above, the latest edition includes the capability to connect a Bluetooth Controller\/Monitor to it via the 4-pin data connector, 8 selectable programmes\u00a0 (initially this was limited to 4, which of course is still 3 more than the alternatives from other manufacturers!), and the connection method has changed from the M6 studs to spade tags on the latest model shown above<\/p>\n

The Ablemail AMT-12 and AMT12-2B units from Wildebus also come complete with cabling to suit to make it as easy as possible to install.\u00a0 You get 3 wires of 300mm length – One 0V (Green or Black); plus a +VE for the Starter and a +VE for the Leisure (these will be from the colour range of Red, Blue, White and Yellow).\u00a0 There is an extended lead option listed which provides you with cables of 600mm length.
\nWhen supplied with the AMT12-2, one of the supplied wires will also have a short flying lead that can be used as a handy source of 12V power to use for either reprogramming the unit if desired or as an override connection (connect to Faston Switch 2 for override).\u00a0\u00a0 We supply 3 x 6mm Ring Terminals ready to fit if connecting via a AMC B2B or Relay device;\u00a0 The bare wires are suitable if connecting via an Orion B2B or EBL for example.<\/p>\n

\"\"<\/p>\n

If the extended csable length is still not enough, we can supply longer length leads if required at a small extra charge if, for example, you need a longer lead for one of the battery +VEs.\u00a0 \u00a0Just drop us a note.\u00a0 (note that Colours specified are subject to change)<\/p>\n

The AMT12-2 is a “Fit and Forget” Battery Maintainer but it still offers configuration and enhancements well beyond its competition with options for those folk who like to adapt and adjust their installations further.<\/p>\n

 <\/p>\n

\n
AMT12-2B with Integrated Bluetooth<\/span><\/h5>\n

We are very pleased and excited to announce the availability of the AMT12-2B – the B stands for “Bluetooth”.\u00a0 \u00a0The AMT12-2B is just like the original AMT12-2 but now instead of having to add an ABB-07 Bluetooth Module to have access and programming via the Smartphone App, that function is now built-in!\u00a0 If you were thinking of getting the AMT12-2 and ABB07 Combo, you can plump for the AMT12-2B instead at a very useful cost saving.<\/p>\n

The AMT12-2B looks identical to the AMT12-2 (which is of course still available) except for the removal of the green 4-pin plug, as that is no longer required, and the remova;l of the SW2 and SW1 programming and override tabs, as those functions are accessible using the FREE Smartphone app, available on the Google Play Store and Apple Shop – just search for “ablemail” to locate.<\/p>\n

\"\"\u00a0 \u00a0 \u00a0\"\"<\/p>\n

 <\/p>\n

\n
AMT12-2 and ABB-07 Combo Kit<\/span><\/h5>\n

If you prefer not to opt for the brand new AMT12-2B with built-in Bluetooth, we can also offer a combo offering of the AMT12-2 Battery Maintainer and the ABB-07 Bluetooth Module<\/a>.\u00a0 \u00a0(this may be a good option if you have other Ablemail products that you can plug the ABB-07 module into to setup).<\/p>\n

The Screenshots and description below are applicable to both the AMT12-2 with plug-in ABB-07 module and to the new AMT12-2B maintainer with integrated ABB-07.<\/p>\n

The first screenshot on the left shows the configuration options available, which allow you to fine tune the configuration beyond the 8 presets selections as well as monitoring the function of the Battery Maintainer plus using a brand new feature now available on the latest versions of the AMT – that is the ability to be able to remotely turn the override on and off via the app.<\/p>\n

The next pair of Screenshots below are in the “Manager” Screen and let you see the status of the Maintainer , whether it is on or not, the voltages of the Vehicle Battery and the Secondary (Leisure) Battery.<\/p>\n

You also see here the Override Button, showing Red when turned off with a message to press to turn on, and then in Green when on, with a message to turn it off.<\/p>\n

\"\" \"\" \"\"<\/p>\n

Purchasing the AMT12-2 and the ABB-07 together will save over buying the two parts seperately – you will get a \u00a35 discount on both the AMT itself and the ABB-07 Module.<\/p>\n

\n
AMT12-2 and Switch Kit<\/span><\/h5>\n

We also have a Switch Kit that allows a simple override on demand of the programmed setup to run the AMT permanently on occasion if needed.\u00a0\u00a0 This is a very handy feature that can be added in at low cost.\u00a0\u00a0 This is designed to integrate to the standard AMT wiring we supply and includes a CBE Mount ready for matching with common existing Motorhome fittings.<\/p>\n

\"\"<\/p>\n

 <\/p>\n

NOTES:
\nWire Colours are subject to change
\nWhen fitting or removing Spade Terminals, NEVER use the cable to pull on, ALWAYS use the connector body<\/p>\n

\n

 <\/p>\n

For the Data sheet instructions, click here:
\n\"\" AMT 12-2 Data Sheet<\/a><\/p>\n

This Diagram shows how the AMT can be connected to any B2B when installed with the B2B Cabling Kit we provide:
\n\"\"AMT Installation Guideline<\/a><\/p>\n

 <\/p>\n

 <\/p>\n

\n

Settings and Programming the AMT12-2B or AMT12-2 + ABB07<\/strong><\/h3>\n

You can choose from 8 presets via the Smart App or change the individual entries as you desire.\u00a0 Note that it is quite possible to configure the unit to no longer run if the wrong changes are made, so take a note of the settings provided in the presets and adjust as needed with care.\u00a0 Use the information earlier in the listing to see how to use the App.<\/p>\n

\n

Settings and Programming the AMT12-2 (non Bluetooth method)<\/strong><\/h3>\n

Setting Selection<\/strong><\/h4>\n

The available settings are as follows:<\/p>\n

    \n
  1. Standard Alternator<\/span> + Lead Battery<\/span>; Standard parasitic drain<\/li>\n
  2. Standard Alternator<\/span> + Lithium Battery<\/span>; Standard parasitic drain<\/li>\n
  3. Smart Alternator<\/span> + Lithium Battery<\/span>; Standard parasitic drain<\/li>\n
  4. Smart Alternator<\/span> + Lead Battery<\/span>; Standard parasitic drain<\/li>\n
  5. Standard Alternator<\/span> + Lead Battery<\/span>; Higher parasitic drain<\/li>\n
  6. Standard Alternator<\/span> + Lithium Battery<\/span>; Higher parasitic drain<\/li>\n
  7. Smart Alternator<\/span> + Lithium Battery<\/span>; Higher parasitic drain<\/li>\n
  8. Smart Alternator<\/span> + Lead Battery<\/span>; Higher parasitic drain<\/li>\n<\/ol>\n

    Standard Alternator<\/span> (1,2,5,6) = Vehicle Battery goes to 12.8V;\u00a0 Smart Alternator<\/span> (3,4,7,8) = Vehicle Battery charges to 12.4V
    \nLithium Battery<\/span> (2,3,6,7) = AMT Activates when Battery >13.5V; Lead Battery<\/span> (1,4,5,8)= AMT Activates when Battery >13.0V
    \nStandard Drain (settings 1-4) = AMT is ON for 6 seconds, OFF for 15 seconds; Higher Drain (5-8) = AMT is ON for 10s, OFF for 15s<\/p>\n

    Whilst 12V is applied to Faston Switch 2, the programmed mode is overridden during that time and the AMT cycle is 9 seconds ON, 1 second OFF. This is in fact how the optional Switch Kit is connected up to activate that program override.<\/p>\n

    \n

    Reprogramming the AMT12-2\u00a0<\/strong><\/h4>\n

    If you need to reprogramme the AMT12-2 to a different setting, simply do the following on the AMT Battery Maintainer (in this exact sequence):<\/p>\n

    Please note, the following is for the AMT12-2 only and does not apply to the new AMT12-2B, which is programmable only via the Smartphone App.<\/p>\n

      \n
    1. \n
        \n
      1. Remove Cable from 0V Spade Terminal<\/li>\n
      2. Connect Flying lead to SW1 (terminal next to green plug)<\/li>\n
      3. Reconnect Cable to 0V. The LED will then flash green a number of times to match the setting it is currently programmed to<\/li>\n
      4. Within 40 seconds, remove and then reconnect the flylead on SW1. The LED will then start to count through the available programs i.e. 1 flash, pause, 2 flashes, pause, 3 flashes, pause, etc.<\/li>\n
      5. When the LED has flashed the same number of times as the setting you want (e.g. You want setting 5, and it did 5 flashes), remove the Flylead from SW1 again, and then reconnect.<\/li>\n
      6. The LED will then flash rapidly a number of times to show it has reprogrammed.<\/li>\n
      7. Remove the Flylead from SW1 once more. The LED will flash to confirm it is programmed to the setting selected, the number of flashes corresponding again to the setting selected. This completes the reprogramming of the AMT12-2.<\/strong><\/li>\n
      8. If satisfied, disconnect and reconnect the 0V Connection and your AMT is ready for use.<\/li>\n
      9. To select another setting, start from step 1 again.<\/li>\n<\/ol>\n<\/li>\n<\/ol>\n

        Please note the above routine does assume you are using, and have connected, the Wiring Kit we supply with the AMT12-2.<\/p>\n

        If when you connect the Flying lead to SW1 the LED turns a constant Red, it will almost certainly be because you forgot to carry out step 1 first.\u00a0 The unit must power-up with SW1 connected in order to enter programming mode.<\/p>\n

        \n

         <\/p>\n","protected":false},"excerpt":{"rendered":"

        The Ablemail AMT-12 Battery Maintainer is an microprocessor-controlled intelligent Battery Maintainer, compatible with both Lead Acid Batteries and Lithium Batteries, and with vehicles with either Standard Alternators or Smart Alternators.<\/p>\n

        Options include Switch Kit to provide Manual Override on demand and AMT12-2 and ABB-07 Combination for the ultimate setup.<\/p>\n","protected":false},"featured_media":2155,"comment_status":"open","ping_status":"closed","template":"","meta":{"iawp_total_views":2695},"product_brand":[],"product_cat":[38,52,30],"product_tag":[],"class_list":["post-564","product","type-product","status-publish","has-post-thumbnail","product_cat-made-in-britain","product_cat-ablemail","product_cat-chargers","product_shipping_class-small-parcel","first","onbackorder","shipping-taxable","purchasable","product-type-variable","has-default-attributes"],"_links":{"self":[{"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=\/wp\/v2\/product\/564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=\/wp\/v2\/product"}],"about":[{"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=564"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=\/wp\/v2\/media\/2155"}],"wp:attachment":[{"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=564"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_brand&post=564"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_cat&post=564"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/1961.org.uk\/testit\/index.php?rest_route=%2Fwp%2Fv2%2Fproduct_tag&post=564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}